var t=function(e,n){return(t=Object.setPrototypeOf||{__proto__:[]}instanceof Array&&function(t,e){t.__proto__=e}||function(t,e){for(var n in e)e.hasOwnProperty(n)&&(t[n]=e[n])})(e,n)};function e(e,n){function r(){this.constructor=e}t(e,n),e.prototype=null===n?Object.create(n):(r.prototype=n.prototype,new r)}function n(t,e,n,r){return new(n||(n=Promise))((function(o,a){function i(t){try{u(r.next(t))}catch(t){a(t)}}function s(t){try{u(r.throw(t))}catch(t){a(t)}}function u(t){t.done?o(t.value):new n((function(e){e(t.value)})).then(i,s)}u((r=r.apply(t,e||[])).next())}))}function r(t,e){var n,r,o,a,i={label:0,sent:function(){if(1&o[0])throw o[1];return o[1]},trys:[],ops:[]};return a={next:s(0),throw:s(1),return:s(2)},"function"==typeof Symbol&&(a[Symbol.iterator]=function(){return this}),a;function s(a){return function(s){return function(a){if(n)throw new TypeError("Generator is already executing.");for(;i;)try{if(n=1,r&&(o=2&a[0]?r.return:a[0]?r.throw||((o=r.return)&&o.call(r),0):r.next)&&!(o=o.call(r,a[1])).done)return o;switch(r=0,o&&(a=[2&a[0],o.value]),a[0]){case 0:case 1:o=a;break;case 4:return i.label++,{value:a[1],done:!1};case 5:i.label++,r=a[1],a=[0];continue;case 7:a=i.ops.pop(),i.trys.pop();continue;default:if(!(o=(o=i.trys).length>0&&o[o.length-1])&&(6===a[0]||2===a[0])){i=0;continue}if(3===a[0]&&(!o||a[1]>o[0]&&a[1]<o[3])){i.label=a[1];break}if(6===a[0]&&i.label<o[1]){i.label=o[1],o=a;break}if(o&&i.label<o[2]){i.label=o[2],i.ops.push(a);break}o[2]&&i.ops.pop(),i.trys.pop();continue}a=e.call(t,i)}catch(t){a=[6,t],r=0}finally{n=o=0}if(5&a[0])throw a[1];return{value:a[0]?a[1]:void 0,done:!0}}([a,s])}}}var o=function(){function t(t){this.global=t,this.flags={},this.flagRegistry={},this.urlFlags={},this.populateURLFlags()}return t.prototype.setPlatform=function(t,e){null!=this.platform&&console.warn("Platform "+this.platformName+" has already been set. Overwriting the platform with "+e+"."),this.platformName=t,this.platform=e},t.prototype.registerFlag=function(t,e,n){if(this.flagRegistry[t]={evaluationFn:e,setHook:n},null!=this.urlFlags[t]){var r=this.urlFlags[t];console.warn("Setting feature override from URL "+t+": "+r+"."),this.set(t,r)}},t.prototype.get=function(t){return t in this.flags?this.flags[t]:(this.flags[t]=this.evaluateFlag(t),this.flags[t])},t.prototype.getNumber=function(t){return this.get(t)},t.prototype.getBool=function(t){return this.get(t)},t.prototype.getFlags=function(){return this.flags},Object.defineProperty(t.prototype,"features",{get:function(){return this.flags},enumerable:!0,configurable:!0}),t.prototype.set=function(t,e){if(null==this.flagRegistry[t])throw new Error("Cannot set flag "+t+" as it has not been registered.");this.flags[t]=e,null!=this.flagRegistry[t].setHook&&this.flagRegistry[t].setHook(e)},t.prototype.evaluateFlag=function(t){if(null==this.flagRegistry[t])throw new Error("Cannot evaluate flag '"+t+"': no evaluation function found.");return this.flagRegistry[t].evaluationFn()},t.prototype.setFlags=function(t){this.flags=Object.assign({},t)},t.prototype.reset=function(){this.flags={},this.urlFlags={},this.populateURLFlags()},t.prototype.populateURLFlags=function(){var t=this;if(void 0!==this.global&&void 0!==this.global.location&&void 0!==this.global.location.search){var e,n,r=(e=this.global.location.search,n={},e.replace(/[?&]([^=?&]+)(?:=([^&]*))?/g,(function(t){for(var e=[],r=1;r<arguments.length;r++)e[r-1]=arguments[r];return a(n,e[0],e[1]),e.join("=")})),n);if("tfjsflags"in r)r.tfjsflags.split(",").forEach((function(e){var n=e.split(":"),r=n[0],o=n[1];t.urlFlags[r]=function(t,e){if("true"===(e=e.toLowerCase())||"false"===e)return"true"===e;if(""+ +e===e)return+e;throw new Error("Could not parse value flag value "+e+" for flag "+t+".")}(r,o)}))}},t}();function a(t,e,n){t[decodeURIComponent(e)]=decodeURIComponent(n||"")}function i(){return s}var s=null;var u=new Map,c=new Map;function l(t,e){var n=g(t,e);return u.get(n)}function h(t){return c.get(t)}function f(t){for(var e=u.entries(),n=[];;){var r=e.next(),o=r.done,a=r.value;if(o)break;var i=a[0],s=a[1];i.split("_")[0]===t&&n.push(s)}return n}function d(t){var e=t.kernelName,n=t.backendName,r=g(e,n);if(u.has(r))throw new Error("The kernel '"+e+"' for backend '"+n+"' is already registered");u.set(r,t)}function p(t){var e=t.kernelName;c.has(e)&&console.warn("Overriding the gradient for '"+e+"'"),c.set(e,t)}function v(t,e){var n=g(t,e);if(!u.has(n))throw new Error("The kernel '"+t+"' for backend '"+e+"' is not registered");u.delete(n)}function m(t){if(!c.has(t))throw new Error("The gradient '"+t+"' for backend is not registered");c.delete(t)}function g(t,e){return e+"_"+t}function y(t){for(var e=t.length,n=0,r=0;e>0;)r=Math.random()*e|0,n=t[--e],t[e]=t[r],t[r]=n}function x(t,e,n){return Math.max(t,Math.min(e,n))}function b(t){return t%2==0?t:t+1}function w(t){for(var e=0,n=0;n<t.length;n++)e+=t[n];return e}function C(t,e){if(!t)throw new Error("string"==typeof e?e:e())}function E(t,e,n){void 0===n&&(n=""),C(S(t,e),(function(){return n+" Shapes "+t+" and "+e+" must match"}))}function R(t){C(null!=t,(function(){return"The input to the tensor constructor must be a non-null value."}))}function I(t,e,n){if(void 0===e&&(e=[]),void 0===n&&(n=!1),null==e&&(e=[]),Array.isArray(t)||V(t)&&!n)for(var r=0;r<t.length;++r)I(t[r],e,n);else e.push(t);return e}function k(t){if(0===t.length)return 1;for(var e=t[0],n=1;n<t.length;n++)e*=t[n];return e}function S(t,e){if(t===e)return!0;if(null==t||null==e)return!1;if(t.length!==e.length)return!1;for(var n=0;n<t.length;n++)if(t[n]!==e[n])return!1;return!0}function A(t){return t%1==0}function D(t){if(null!=Math.tanh)return Math.tanh(t);if(t===1/0)return 1;if(t===-1/0)return-1;var e=Math.exp(2*t);return(e-1)/(e+1)}function T(t){var e=Math.ceil(Math.sqrt(t));return[e,Math.ceil(t/e)]}function N(t,e){return e<=t.length?t:t+" ".repeat(e-t.length)}function F(t,e,n){return void 0===e&&(e=function(t){return 0}),new Promise((function(r,o){var a=0,i=function(){if(t())r();else{a++;var s=e(a);null!=n&&a>=n?o():setTimeout(i,s)}};i()}))}function _(t,e){for(var n=1,r=-1,o=0;o<t.length;++o)if(t[o]>=0)n*=t[o];else if(-1===t[o]){if(-1!==r)throw Error("Shapes can only have 1 implicit size. Found -1 at dim "+r+" and dim "+o);r=o}else if(t[o]<0)throw Error("Shapes can not be < 0. Found "+t[o]+" at dim "+o);if(-1===r){if(e>0&&e!==n)throw Error("Size("+e+") must match the product of shape "+t);return t}if(0===n)throw Error("Cannot infer the missing size in ["+t+"] when there are 0 elements");if(e%n!=0)throw Error("The implicit shape can't be a fractional number. Got "+e+" / "+n);var a=t.slice();return a[r]=e/n,a}function O(t,e){var n=e.length;return C((t=null==t?e.map((function(t,e){return e})):[].concat(t)).every((function(t){return t>=-n&&t<n})),(function(){return"All values in axis param must be in range [-"+n+", "+n+") but got axis "+t})),C(t.every((function(t){return A(t)})),(function(){return"All values in axis param must be integers but got axis "+t})),t.map((function(t){return t<0?n+t:t}))}function M(t,e){for(var n=[],r=[],o=null!=e&&Array.isArray(e)&&0===e.length,a=null==e||o?null:O(e,t).sort(),i=0,s=0;s<t.length;++s){if(null!=a){if(a[i]===s&&1!==t[s])throw new Error("Can't squeeze axis "+s+" since its dim '"+t[s]+"' is not 1");(null==a[i]||a[i]>s)&&1===t[s]&&(n.push(t[s]),r.push(s)),a[i]<=s&&i++}1!==t[s]&&(n.push(t[s]),r.push(s))}return{newShape:n,keptDims:r}}function B(t,e){var n=null;if(null==t||"float32"===t)n=new Float32Array(e);else if("int32"===t)n=new Int32Array(e);else{if("bool"!==t)throw new Error("Unknown data type "+t);n=new Uint8Array(e)}return n}function P(t,e){var n=null;if(null==t||"float32"===t)n=new Float32Array(e);else if("int32"===t)n=new Int32Array(e);else if("bool"===t)n=new Uint8Array(e);else{if("string"!==t)throw new Error("Unknown data type "+t);n=new Array(e)}return n}function L(t,e){for(var n=0;n<t.length;n++){var r=t[n];if(isNaN(r)||!isFinite(r))throw Error("A tensor of type "+e+" being uploaded contains "+r+".")}}function W(t){return"bool"===t||"complex64"===t||"float32"===t||"int32"===t||"string"===t}function U(t,e){return"complex64"!==e&&(("float32"!==e||"complex64"===t)&&(("int32"!==e||"float32"===t||"complex64"===t)&&("bool"!==e||"bool"!==t)))}function V(t){return t instanceof Float32Array||t instanceof Int32Array||t instanceof Uint8Array}function z(t){if("float32"===t||"int32"===t)return 4;if("complex64"===t)return 8;if("bool"===t)return 1;throw new Error("Unknown dtype "+t)}function G(t){if(null==t)return 0;var e=0;return t.forEach((function(t){return e+=t.length})),e}function H(t){return"string"==typeof t||t instanceof String}function q(t){return"boolean"==typeof t}function K(t){return"number"==typeof t}function j(t){return Array.isArray(t)?j(t[0]):t instanceof Float32Array?"float32":t instanceof Int32Array||t instanceof Uint8Array?"int32":K(t)?"float32":H(t)?"string":q(t)?"bool":"float32"}function X(t){return!!(t&&t.constructor&&t.call&&t.apply)}function Y(t,e){for(var n=e;n<t;++n)if(t%n==0)return n;return t}function $(t){var e=t.length;if(e<2)return[];var n=new Array(e-1);n[e-2]=t[e-1];for(var r=e-3;r>=0;--r)n[r]=n[r+1]*t[r+1];return n}function Q(t,e,n){if("string"===e)throw new Error("Cannot convert a string[] to a TypedArray");if(Array.isArray(t)&&(t=I(t)),n&&L(t,e),function(t,e){return t instanceof Float32Array&&"float32"===e||t instanceof Int32Array&&"int32"===e||t instanceof Uint8Array&&"bool"===e}(t,e))return t;if(null==e||"float32"===e||"complex64"===e)return new Float32Array(t);if("int32"===e)return new Int32Array(t);if("bool"===e){for(var r=new Uint8Array(t.length),o=0;o<r.length;++o)0!==Math.round(t[o])&&(r[o]=1);return r}throw new Error("Unknown data type "+e)}function J(t,e){if(0===t.length)return e[0];var n=t.reduce((function(t,e){return t*e}));if(0===n)return[];if(n!==e.length)throw new Error("["+t+"] does not match the input size.");return function t(e,n,r){var o=new Array;if(1===n.length)for(var a=n[0],i=0;i<a;i++)o[i]=r[e+i];else{a=n[0];var s=n.slice(1),u=s.reduce((function(t,e){return t*e}));for(i=0;i<a;i++)o[i]=t(e+i*u,s,r)}return o}(0,t,e)}function Z(t,e){for(var n=tt(t,e),r=0;r<n.length;r++)n[r]=1;return n}function tt(t,e){if(null==e||"float32"===e||"complex64"===e)return new Float32Array(t);if("int32"===e)return new Int32Array(t);if("bool"===e)return new Uint8Array(t);throw new Error("Unknown data type "+e)}function et(){return i().platform.now()}function nt(t){t.forEach((function(e){C(Number.isInteger(e)&&e>=0,(function(){return"Tensor must have a shape comprised of positive integers but got shape ["+t+"]."}))}))}function rt(t,e){return void 0===e&&(e="utf-8"),e=e||"utf-8",i().platform.encode(t,e)}function ot(t,e){return void 0===e&&(e="utf-8"),e=e||"utf-8",i().platform.decode(t,e)}function at(t,e,n){if(0===e)return 0;if(1===e)return t[0];for(var r=t[t.length-1],o=0;o<t.length-1;++o)r+=n[o]*t[o];return r}function it(t,e,n){if(0===e)return[];if(1===e)return[t];for(var r=new Array(e),o=0;o<r.length-1;++o)r[o]=Math.floor(t/n[o]),t-=r[o]*n[o];return r[r.length-1]=t,r}var st=Object.freeze({shuffle:y,clamp:x,nearestLargerEven:b,sum:w,randUniform:function(t,e){var n=Math.random();return e*n+(1-n)*t},distSquared:function(t,e){for(var n=0,r=0;r<t.length;r++){var o=Number(t[r])-Number(e[r]);n+=o*o}return n},assert:C,assertShapesMatch:E,assertNonNull:R,flatten:I,sizeFromShape:k,isScalarShape:function(t){return 0===t.length},arraysEqual:S,isInt:A,tanh:D,sizeToSquarishShape:T,createShuffledIndices:function(t){for(var e=new Uint32Array(t),n=0;n<t;++n)e[n]=n;return y(e),e},rightPad:N,repeatedTry:F,inferFromImplicitShape:_,parseAxisParam:O,squeezeShape:M,getTypedArrayFromDType:B,getArrayFromDType:P,checkConversionForErrors:L,isValidDtype:W,hasEncodingLoss:U,isTypedArray:V,bytesPerElement:z,bytesFromStringArray:G,isString:H,isBoolean:q,isNumber:K,inferDtype:j,isFunction:X,nearestDivisor:Y,computeStrides:$,toTypedArray:Q,toNestedArray:J,makeOnesTypedArray:Z,makeZerosTypedArray:tt,now:et,assertNonNegativeIntegerDimensions:nt,fetch:function(t,e){return i().platform.fetch(t,e)},encodeString:rt,decodeString:ot,locToIndex:at,indexToLoc:it}),ut=function(){function t(t,e){this.backendTimer=t,this.logger=e,null==e&&(this.logger=new ct)}return t.prototype.profileKernel=function(t,e,n){var r,o=this,a=this.backendTimer.time((function(){r=n()}));return r.forEach((function(n){n.data().then((function(r){!function(t,e,n){if("float32"!==e)return!1;for(var r=0;r<t.length;r++){var o=t[r];if(isNaN(o)||!isFinite(o))return console.warn("Found "+o+" in the result of '"+n+"'"),!0}}(r,n.dtype,t),a.then((function(a){var i="";null!=a.getExtraProfileInfo&&(i=a.getExtraProfileInfo()),o.logger.logKernelProfile(t,n,r,a.kernelMs,e,i)}))}))})),r},t}();var ct=function(){function t(){}return t.prototype.logKernelProfile=function(t,e,n,r,o,a){var i="number"==typeof r?N(r+"ms",9):r.error,s=N(t,25),u=e.rank,c=e.size,l=N(e.shape.toString(),14),h="";for(var f in o){var d=o[f].shape||e.shape,p=d.length;h+=f+": "+p+"D "+(p>0?d:"")+" "}console.log("%c"+s+"\t%c"+i+"\t%c"+u+"D "+l+"\t%c"+c+"\t%c"+h+"\t%c"+a,"font-weight:bold","color:red","color:blue","color: orange","color: green","color: steelblue")},t}();var lt=20,ht=3,ft=7;function dt(t,e,n,r){var o=$(e),a=function(t,e,n,r){var o=k(e),a=r[r.length-1],i=new Array(a).fill(0),s=e.length,u="complex64"===n?mt(t):t;if(s>1)for(var c=0;c<o/a;c++)for(var l=c*a,h=0;h<a;h++)i[h]=Math.max(i[h],pt(u[l+h],0,n).length);return i}(t,e,n,o),i=e.length,s=function t(e,n,r,o,a,i){void 0===i&&(i=!0);var s="complex64"===r?2:1,u=n[0],c=n.length;if(0===c){return"complex64"===r?[pt(mt(e)[0],0,r)]:"bool"===r?[vt(e[0])]:[e[0].toString()]}if(1===c){if(u>lt){var l=ht*s,h=Array.from(e.slice(0,l)),f=Array.from(e.slice((u-ht)*s,u*s));return"complex64"===r&&(h=mt(h),f=mt(f)),["["+h.map((function(t,e){return pt(t,a[e],r)})).join(", ")+", ..., "+f.map((function(t,e){return pt(t,a[u-ht+e],r)})).join(", ")+"]"]}return["["+("complex64"===r?mt(e):Array.from(e)).map((function(t,e){return pt(t,a[e],r)})).join(", ")+"]"]}var d=n.slice(1),p=o.slice(1),v=o[0]*s,m=[];if(u>lt){for(var g=0;g<ht;g++){var y=(x=g*v)+v;m.push.apply(m,t(e.slice(x,y),d,r,p,a,!1))}m.push("...");for(g=u-ht;g<u;g++){y=(x=g*v)+v;m.push.apply(m,t(e.slice(x,y),d,r,p,a,g===u-1))}}else for(g=0;g<u;g++){var x;y=(x=g*v)+v;m.push.apply(m,t(e.slice(x,y),d,r,p,a,g===u-1))}var b=2===c?",":"";m[0]="["+m[0]+b;for(g=1;g<m.length-1;g++)m[g]=" "+m[g]+b;var w=",\n";for(g=2;g<c;g++)w+="\n";return m[m.length-1]=" "+m[m.length-1]+"]"+(i?"":w),m}(t,e,n,o,a),u=["Tensor"];return r&&(u.push(" dtype: "+n),u.push(" rank: "+i),u.push(" shape: ["+e+"]"),u.push(" values:")),u.push(s.map((function(t){return" "+t})).join("\n")),u.join("\n")}function pt(t,e,n){return N(Array.isArray(t)?parseFloat(t[0].toFixed(ft))+" + "+parseFloat(t[1].toFixed(ft))+"j":H(t)?"'"+t+"'":"bool"===n?vt(t):parseFloat(t.toFixed(ft)).toString(),e)}function vt(t){return 0===t?"false":"true"}function mt(t){for(var e=[],n=0;n<t.length;n+=2)e.push([t[n],t[n+1]]);return e}var gt=function(){function t(t,e,n){var r=this;if(this.dtype=e,this.shape=t.slice(),this.size=k(t),null!=n){var o=n.length;C(o===this.size,(function(){return"Length of values '"+o+"' does not match the size inferred by the shape '"+r.size+"'."}))}if("complex64"===e)throw new Error("complex64 dtype TensorBuffers are not supported. Please create a TensorBuffer for the real and imaginary parts separately and call tf.complex(real, imag).");this.values=n||P(e,this.size),this.strides=$(t)}return t.prototype.set=function(t){for(var e=this,n=[],r=1;r<arguments.length;r++)n[r-1]=arguments[r];0===n.length&&(n=[0]),C(n.length===this.rank,(function(){return"The number of provided coordinates ("+n.length+") must match the rank ("+e.rank+")"}));var o=this.locToIndex(n);this.values[o]=t},t.prototype.get=function(){for(var t=[],e=0;e<arguments.length;e++)t[e]=arguments[e];0===t.length&&(t=[0]);for(var n=0,r=0,o=t;r<o.length;r++){var a=o[r];if(a<0||a>=this.shape[n]){var i="Requested out of range element at "+t+". Buffer shape="+this.shape;throw new Error(i)}n++}for(var s=t[t.length-1],u=0;u<t.length-1;++u)s+=this.strides[u]*t[u];return this.values[s]},t.prototype.locToIndex=function(t){if(0===this.rank)return 0;if(1===this.rank)return t[0];for(var e=t[t.length-1],n=0;n<t.length-1;++n)e+=this.strides[n]*t[n];return e},t.prototype.indexToLoc=function(t){if(0===this.rank)return[];if(1===this.rank)return[t];for(var e=new Array(this.shape.length),n=0;n<e.length-1;++n)e[n]=Math.floor(t/this.strides[n]),t-=e[n]*this.strides[n];return e[e.length-1]=t,e},Object.defineProperty(t.prototype,"rank",{get:function(){return this.shape.length},enumerable:!0,configurable:!0}),t.prototype.toTensor=function(){return yt().makeTensor(this.values,this.shape,this.dtype)},t}(),yt=null,xt=null,bt=null;var wt=function(){function t(t,e,n,r){this.kept=!1,this.isDisposedInternal=!1,this.shape=t.slice(),this.dtype=e||"float32",this.size=k(t),this.strides=$(t),this.dataId=n,this.id=r,this.rankType=this.rank<5?this.rank.toString():"higher"}return t.prototype.flatten=function(){return this.throwIfDisposed(),this.as1D()},t.prototype.asScalar=function(){return this.throwIfDisposed(),C(1===this.size,(function(){return"The array must have only 1 element."})),this.reshape([])},t.prototype.as1D=function(){return this.throwIfDisposed(),this.reshape([this.size])},t.prototype.as2D=function(t,e){return this.throwIfDisposed(),this.reshape([t,e])},t.prototype.as3D=function(t,e,n){return this.throwIfDisposed(),this.reshape([t,e,n])},t.prototype.as4D=function(t,e,n,r){return this.throwIfDisposed(),this.reshape([t,e,n,r])},t.prototype.as5D=function(t,e,n,r,o){return this.throwIfDisposed(),this.reshape([t,e,n,r,o])},t.prototype.asType=function(t){return this.throwIfDisposed(),xt.cast(this,t)},Object.defineProperty(t.prototype,"rank",{get:function(){return this.shape.length},enumerable:!0,configurable:!0}),t.prototype.buffer=function(){return n(this,void 0,void 0,(function(){var t;return r(this,(function(e){switch(e.label){case 0:return[4,this.data()];case 1:return t=e.sent(),[2,xt.buffer(this.shape,this.dtype,t)]}}))}))},t.prototype.bufferSync=function(){return xt.buffer(this.shape,this.dtype,this.dataSync())},t.prototype.array=function(){return n(this,void 0,void 0,(function(){var t;return r(this,(function(e){switch(e.label){case 0:return[4,this.data()];case 1:return t=e.sent(),[2,J(this.shape,t)]}}))}))},t.prototype.arraySync=function(){return J(this.shape,this.dataSync())},t.prototype.data=function(){return n(this,void 0,void 0,(function(){var t,e;return r(this,(function(n){switch(n.label){case 0:return this.throwIfDisposed(),t=yt().read(this.dataId),"string"!==this.dtype?[3,2]:[4,t];case 1:e=n.sent();try{return[2,e.map((function(t){return ot(t)}))]}catch(t){throw new Error("Failed to decode the string bytes into utf-8. To get the original bytes, call tensor.bytes().")}n.label=2;case 2:return[2,t]}}))}))},t.prototype.dataSync=function(){this.throwIfDisposed();var t=yt().readSync(this.dataId);if("string"===this.dtype)try{return t.map((function(t){return ot(t)}))}catch(t){throw new Error("Failed to decode the string bytes into utf-8. To get the original bytes, call tensor.bytes().")}return t},t.prototype.bytes=function(){return n(this,void 0,void 0,(function(){var t;return r(this,(function(e){switch(e.label){case 0:return this.throwIfDisposed(),[4,yt().read(this.dataId)];case 1:return t=e.sent(),"string"===this.dtype?[2,t]:[2,new Uint8Array(t.buffer)]}}))}))},t.prototype.dispose=function(){this.isDisposed||(yt().disposeTensor(this),this.isDisposedInternal=!0)},Object.defineProperty(t.prototype,"isDisposed",{get:function(){return this.isDisposedInternal},enumerable:!0,configurable:!0}),t.prototype.throwIfDisposed=function(){if(this.isDisposed)throw new Error("Tensor is disposed.")},t.prototype.toFloat=function(){return this.asType("float32")},t.prototype.toInt=function(){return this.asType("int32")},t.prototype.toBool=function(){return this.asType("bool")},t.prototype.print=function(t){return void 0===t&&(t=!1),xt.print(this,t)},t.prototype.reshape=function(t){return this.throwIfDisposed(),xt.reshape(this,t)},t.prototype.reshapeAs=function(t){return this.throwIfDisposed(),this.reshape(t.shape)},t.prototype.expandDims=function(t){return void 0===t&&(t=0),xt.expandDims(this,t)},t.prototype.cumsum=function(t,e,n){return void 0===t&&(t=0),void 0===e&&(e=!1),void 0===n&&(n=!1),xt.cumsum(this,t,e,n)},t.prototype.squeeze=function(t){return this.throwIfDisposed(),xt.squeeze(this,t)},t.prototype.clone=function(){return this.throwIfDisposed(),xt.clone(this)},t.prototype.oneHot=function(t,e,n){return this.throwIfDisposed(),xt.oneHot(this,t,e,n)},t.prototype.toString=function(t){return void 0===t&&(t=!1),dt(this.dataSync(),this.shape,this.dtype,t)},t.prototype.tile=function(t){return this.throwIfDisposed(),xt.tile(this,t)},t.prototype.gather=function(t,e){return void 0===e&&(e=0),this.throwIfDisposed(),xt.gather(this,t,e)},t.prototype.matMul=function(t,e,n){return void 0===e&&(e=!1),void 0===n&&(n=!1),this.throwIfDisposed(),xt.matMul(this,t,e,n)},t.prototype.dot=function(t){return this.throwIfDisposed(),xt.dot(this,t)},t.prototype.norm=function(t,e,n){return void 0===t&&(t="euclidean"),void 0===e&&(e=null),void 0===n&&(n=!1),this.throwIfDisposed(),xt.norm(this,t,e,n)},t.prototype.slice=function(t,e){return this.throwIfDisposed(),xt.slice(this,t,e)},t.prototype.reverse=function(t){return this.throwIfDisposed(),xt.reverse(this,t)},t.prototype.concat=function(e,n){return void 0===n&&(n=0),this.throwIfDisposed(),e instanceof t&&(e=[e]),xt.concat([this].concat(e),n)},t.prototype.split=function(t,e){return void 0===e&&(e=0),this.throwIfDisposed(),xt.split(this,t,e)},t.prototype.stack=function(t,e){return void 0===e&&(e=0),xt.stack([this,t],e)},t.prototype.unstack=function(t){return void 0===t&&(t=0),xt.unstack(this,t)},t.prototype.pad=function(t,e){return void 0===e&&(e=0),xt.pad(this,t,e)},t.prototype.batchNormalization=function(t,e,n,r,o){return void 0===n&&(n=.001),bt("tf.batchNormalization() is going away. Use tf.batchNorm() instead, and note the positional argument change of scale, offset, and varianceEpsilon"),this.batchNorm(t,e,o,r,n)},t.prototype.batchNorm=function(t,e,n,r,o){return void 0===o&&(o=.001),this.throwIfDisposed(),xt.batchNorm(this,t,e,n,r,o)},t.prototype.all=function(t,e){return void 0===t&&(t=null),void 0===e&&(e=!1),this.throwIfDisposed(),xt.all(this,t,e)},t.prototype.any=function(t,e){return void 0===t&&(t=null),void 0===e&&(e=!1),this.throwIfDisposed(),xt.any(this,t,e)},t.prototype.logSumExp=function(t,e){return void 0===t&&(t=null),void 0===e&&(e=!1),this.throwIfDisposed(),xt.logSumExp(this,t,e)},t.prototype.sum=function(t,e){return void 0===t&&(t=null),void 0===e&&(e=!1),this.throwIfDisposed(),xt.sum(this,t,e)},t.prototype.prod=function(t,e){return void 0===t&&(t=null),void 0===e&&(e=!1),this.throwIfDisposed(),xt.prod(this,t,e)},t.prototype.mean=function(t,e){return void 0===t&&(t=null),void 0===e&&(e=!1),this.throwIfDisposed(),xt.mean(this,t,e)},t.prototype.min=function(t,e){return void 0===t&&(t=null),void 0===e&&(e=!1),this.throwIfDisposed(),xt.min(this,t,e)},t.prototype.max=function(t,e){return void 0===t&&(t=null),void 0===e&&(e=!1),this.throwIfDisposed(),xt.max(this,t,e)},t.prototype.argMin=function(t){return void 0===t&&(t=null),this.throwIfDisposed(),xt.argMin(this,t)},t.prototype.argMax=function(t){return void 0===t&&(t=null),this.throwIfDisposed(),xt.argMax(this,t)},t.prototype.cast=function(t){return this.throwIfDisposed(),xt.cast(this,t)},t.prototype.add=function(t){return this.throwIfDisposed(),xt.add(this,t)},t.prototype.addStrict=function(t){return this.throwIfDisposed(),xt.addStrict(this,t)},t.prototype.atan2=function(t){return this.throwIfDisposed(),xt.atan2(this,t)},t.prototype.sub=function(t){return this.throwIfDisposed(),xt.sub(this,t)},t.prototype.subStrict=function(t){return this.throwIfDisposed(),xt.subStrict(this,t)},t.prototype.pow=function(t){return this.throwIfDisposed(),xt.pow(this,t)},t.prototype.powStrict=function(t){return this.throwIfDisposed(),xt.powStrict(this,t)},t.prototype.mul=function(t){return this.throwIfDisposed(),xt.mul(this,t)},t.prototype.mulStrict=function(t){return this.throwIfDisposed(),xt.mulStrict(this,t)},t.prototype.div=function(t){return this.throwIfDisposed(),xt.div(this,t)},t.prototype.divNoNan=function(t){return this.throwIfDisposed(),xt.divNoNan(this,t)},t.prototype.floorDiv=function(t){return this.throwIfDisposed(),xt.floorDiv(this,t)},t.prototype.divStrict=function(t){return this.throwIfDisposed(),xt.divStrict(this,t)},t.prototype.minimum=function(t){return this.throwIfDisposed(),xt.minimum(this,t)},t.prototype.minimumStrict=function(t){return this.throwIfDisposed(),xt.minimumStrict(this,t)},t.prototype.maximum=function(t){return this.throwIfDisposed(),xt.maximum(this,t)},t.prototype.maximumStrict=function(t){return this.throwIfDisposed(),xt.maximumStrict(this,t)},t.prototype.mod=function(t){return this.throwIfDisposed(),xt.mod(this,t)},t.prototype.modStrict=function(t){return this.throwIfDisposed(),xt.modStrict(this,t)},t.prototype.squaredDifferenceStrict=function(t){return this.throwIfDisposed(),xt.squaredDifferenceStrict(this,t)},t.prototype.transpose=function(t){return this.throwIfDisposed(),xt.transpose(this,t)},t.prototype.notEqual=function(t){return this.throwIfDisposed(),xt.notEqual(this,t)},t.prototype.notEqualStrict=function(t){return this.throwIfDisposed(),xt.notEqualStrict(this,t)},t.prototype.less=function(t){return this.throwIfDisposed(),xt.less(this,t)},t.prototype.lessStrict=function(t){return this.throwIfDisposed(),xt.lessStrict(this,t)},t.prototype.equal=function(t){return this.throwIfDisposed(),xt.equal(this,t)},t.prototype.equalStrict=function(t){return this.throwIfDisposed(),xt.equalStrict(this,t)},t.prototype.lessEqual=function(t){return this.throwIfDisposed(),xt.lessEqual(this,t)},t.prototype.lessEqualStrict=function(t){return this.throwIfDisposed(),xt.lessEqualStrict(this,t)},t.prototype.greater=function(t){return this.throwIfDisposed(),xt.greater(this,t)},t.prototype.greaterStrict=function(t){return this.throwIfDisposed(),xt.greaterStrict(this,t)},t.prototype.greaterEqual=function(t){return this.throwIfDisposed(),xt.greaterEqual(this,t)},t.prototype.greaterEqualStrict=function(t){return this.throwIfDisposed(),xt.greaterEqualStrict(this,t)},t.prototype.logicalAnd=function(t){return this.throwIfDisposed(),xt.logicalAnd(this,t)},t.prototype.logicalOr=function(t){return this.throwIfDisposed(),xt.logicalOr(this,t)},t.prototype.logicalNot=function(){return this.throwIfDisposed(),xt.logicalNot(this)},t.prototype.logicalXor=function(t){return this.throwIfDisposed(),xt.logicalXor(this,t)},t.prototype.where=function(t,e){return this.throwIfDisposed(),xt.where(t,this,e)},t.prototype.neg=function(){return this.throwIfDisposed(),xt.neg(this)},t.prototype.ceil=function(){return this.throwIfDisposed(),xt.ceil(this)},t.prototype.floor=function(){return this.throwIfDisposed(),xt.floor(this)},t.prototype.sign=function(){return this.throwIfDisposed(),xt.sign(this)},t.prototype.isNaN=function(){return this.throwIfDisposed(),xt.isNaN(this)},t.prototype.isInf=function(){return this.throwIfDisposed(),xt.isInf(this)},t.prototype.isFinite=function(){return this.throwIfDisposed(),xt.isFinite(this)},t.prototype.exp=function(){return this.throwIfDisposed(),xt.exp(this)},t.prototype.expm1=function(){return this.throwIfDisposed(),xt.expm1(this)},t.prototype.log=function(){return this.throwIfDisposed(),xt.log(this)},t.prototype.log1p=function(){return this.throwIfDisposed(),xt.log1p(this)},t.prototype.sqrt=function(){return this.throwIfDisposed(),xt.sqrt(this)},t.prototype.rsqrt=function(){return this.throwIfDisposed(),xt.rsqrt(this)},t.prototype.square=function(){return this.throwIfDisposed(),xt.square(this)},t.prototype.reciprocal=function(){return this.throwIfDisposed(),xt.reciprocal(this)},t.prototype.abs=function(){return this.throwIfDisposed(),xt.abs(this)},t.prototype.clipByValue=function(t,e){return this.throwIfDisposed(),xt.clipByValue(this,t,e)},t.prototype.relu=function(){return this.throwIfDisposed(),xt.relu(this)},t.prototype.relu6=function(){return this.throwIfDisposed(),xt.relu6(this)},t.prototype.elu=function(){return this.throwIfDisposed(),xt.elu(this)},t.prototype.selu=function(){return this.throwIfDisposed(),xt.selu(this)},t.prototype.leakyRelu=function(t){return void 0===t&&(t=.2),this.throwIfDisposed(),xt.leakyRelu(this,t)},t.prototype.prelu=function(t){return this.throwIfDisposed(),xt.prelu(this,t)},t.prototype.sigmoid=function(){return this.throwIfDisposed(),xt.sigmoid(this)},t.prototype.logSigmoid=function(){return this.throwIfDisposed(),xt.logSigmoid(this)},t.prototype.softplus=function(){return this.throwIfDisposed(),xt.softplus(this)},t.prototype.zerosLike=function(){return this.throwIfDisposed(),xt.zerosLike(this)},t.prototype.onesLike=function(){return this.throwIfDisposed(),xt.onesLike(this)},t.prototype.sin=function(){return this.throwIfDisposed(),xt.sin(this)},t.prototype.cos=function(){return this.throwIfDisposed(),xt.cos(this)},t.prototype.tan=function(){return this.throwIfDisposed(),xt.tan(this)},t.prototype.asin=function(){return this.throwIfDisposed(),xt.asin(this)},t.prototype.acos=function(){return this.throwIfDisposed(),xt.acos(this)},t.prototype.atan=function(){return this.throwIfDisposed(),xt.atan(this)},t.prototype.sinh=function(){return this.throwIfDisposed(),xt.sinh(this)},t.prototype.cosh=function(){return this.throwIfDisposed(),xt.cosh(this)},t.prototype.tanh=function(){return this.throwIfDisposed(),xt.tanh(this)},t.prototype.asinh=function(){return this.throwIfDisposed(),xt.asinh(this)},t.prototype.acosh=function(){return this.throwIfDisposed(),xt.acosh(this)},t.prototype.atanh=function(){return this.throwIfDisposed(),xt.atanh(this)},t.prototype.erf=function(){return this.throwIfDisposed(),xt.erf(this)},t.prototype.round=function(){return this.throwIfDisposed(),xt.round(this)},t.prototype.step=function(t){return void 0===t&&(t=0),this.throwIfDisposed(),xt.step(this,t)},t.prototype.softmax=function(t){return void 0===t&&(t=-1),this.throwIfDisposed(),xt.softmax(this,t)},t.prototype.logSoftmax=function(t){return void 0===t&&(t=-1),this.throwIfDisposed(),xt.logSoftmax(this,t)},t.prototype.resizeBilinear=function(t,e){return void 0===e&&(e=!1),this.throwIfDisposed(),xt.image.resizeBilinear(this,t,e)},t.prototype.resizeNearestNeighbor=function(t,e){return void 0===e&&(e=!1),this.throwIfDisposed(),xt.image.resizeNearestNeighbor(this,t,e)},t.prototype.conv1d=function(t,e,n,r,o,a){return void 0===r&&(r="NWC"),void 0===o&&(o=1),this.throwIfDisposed(),xt.conv1d(this,t,e,n,r,o,a)},t.prototype.conv2d=function(t,e,n,r,o,a){return void 0===r&&(r="NHWC"),void 0===o&&(o=[1,1]),this.throwIfDisposed(),xt.conv2d(this,t,e,n,r,o,a)},t.prototype.conv2dTranspose=function(t,e,n,r,o){return this.throwIfDisposed(),xt.conv2dTranspose(this,t,e,n,r,o)},t.prototype.depthwiseConv2D=function(t,e,n,r,o,a){return void 0===r&&(r="NHWC"),void 0===o&&(o=[1,1]),this.throwIfDisposed(),xt.depthwiseConv2d(this,t,e,n,r,o,a)},t.prototype.separableConv2d=function(t,e,n,r,o,a){return void 0===o&&(o=[1,1]),void 0===a&&(a="NHWC"),this.throwIfDisposed(),xt.separableConv2d(this,t,e,n,r,o,a)},t.prototype.avgPool=function(t,e,n,r){return this.throwIfDisposed(),xt.avgPool(this,t,e,n,r)},t.prototype.maxPool=function(t,e,n,r){return this.throwIfDisposed(),xt.maxPool(this,t,e,n,r)},t.prototype.localResponseNormalization=function(t,e,n,r){return void 0===t&&(t=5),void 0===e&&(e=1),void 0===n&&(n=1),void 0===r&&(r=.5),xt.localResponseNormalization(this,t,e,n,r)},t.prototype.pool=function(t,e,n,r,o){return this.throwIfDisposed(),xt.pool(this,t,e,n,r,o)},t.prototype.variable=function(t,e,n){return void 0===t&&(t=!0),this.throwIfDisposed(),yt().makeVariable(this,t,e,n)},t.prototype.unsortedSegmentSum=function(t,e){return this.throwIfDisposed(),xt.unsortedSegmentSum(this,t,e)},t.prototype.batchToSpaceND=function(t,e){return this.throwIfDisposed(),xt.batchToSpaceND(this,t,e)},t.prototype.spaceToBatchND=function(t,e){return this.throwIfDisposed(),xt.spaceToBatchND(this,t,e)},t.prototype.topk=function(t,e){return void 0===t&&(t=1),void 0===e&&(e=!0),this.throwIfDisposed(),xt.topk(this,t,e)},t.prototype.stridedSlice=function(t,e,n,r,o,a,i,s){return void 0===r&&(r=0),void 0===o&&(o=0),void 0===a&&(a=0),void 0===i&&(i=0),void 0===s&&(s=0),this.throwIfDisposed(),xt.stridedSlice(this,t,e,n,r,o,a,i,s)},t.prototype.depthToSpace=function(t,e){return this.throwIfDisposed(),xt.depthToSpace(this,t,e)},t.prototype.fft=function(){return this.throwIfDisposed(),xt.spectral.fft(this)},t.prototype.ifft=function(){return this.throwIfDisposed(),xt.spectral.ifft(this)},t.prototype.rfft=function(){return this.throwIfDisposed(),xt.spectral.rfft(this)},t.prototype.irfft=function(){return this.throwIfDisposed(),xt.spectral.irfft(this)},t}();Object.defineProperty(wt,Symbol.hasInstance,{value:function(t){return!!t&&null!=t.dataId&&null!=t.shape&&null!=t.dtype}});var Ct,Et,Rt,It,kt,St=function(t){function n(e,n,r,o){var a=t.call(this,e.shape,e.dtype,e.dataId,o)||this;return a.trainable=n,a.name=r,a}return e(n,t),n.prototype.assign=function(t){if(t.dtype!==this.dtype)throw new Error("dtype of the new value ("+t.dtype+") and previous value ("+this.dtype+") must match");if(!S(t.shape,this.shape))throw new Error("shape of the new value ("+t.shape+") and previous value ("+this.shape+") must match");yt().disposeTensor(this),this.dataId=t.dataId,yt().incRef(this,null)},n.prototype.dispose=function(){yt().disposeVariable(this),this.isDisposedInternal=!0},n}(wt);Object.defineProperty(St,Symbol.hasInstance,{value:function(t){return t instanceof wt&&null!=t.assign&&t.assign instanceof Function}}),function(t){t.R0="R0",t.R1="R1",t.R2="R2",t.R3="R3",t.R4="R4",t.R5="R5",t.R6="R6"}(Ct||(Ct={})),function(t){t.float32="float32",t.int32="int32",t.bool="int32",t.complex64="complex64"}(Et||(Et={})),function(t){t.float32="float32",t.int32="int32",t.bool="bool",t.complex64="complex64"}(Rt||(Rt={})),function(t){t.float32="float32",t.int32="float32",t.bool="float32",t.complex64="complex64"}(It||(It={})),function(t){t.float32="complex64",t.int32="complex64",t.bool="complex64",t.complex64="complex64"}(kt||(kt={}));var At={float32:It,int32:Et,bool:Rt,complex64:kt};function Dt(t,e){if("string"===t||"string"===e){if("string"===t&&"string"===e)return"string";throw new Error("Can not upcast "+t+" with "+e)}return At[t][e]}function Tt(t){return Dt(t,"int32")}function Nt(t,e){if(t.dtype===e.dtype)return[t,e];var n=Dt(t.dtype,e.dtype);return[t.cast(n),e.cast(n)]}function Ft(t,e){C(t.dtype===e.dtype,(function(){return"The dtypes of the first("+t.dtype+") and second("+e.dtype+") input must match"}))}function _t(t){var e=[];return function t(e,n,r){if(null==e)return;if(e instanceof wt)return void n.push(e);if(o=e,!Array.isArray(o)&&"object"!=typeof o)return;var o;var a=e;for(var i in a){var s=a[i];r.has(s)||(r.add(s),t(s,n,r))}}(t,e,new Set),e}var Ot,Mt=Object.freeze({makeTypesMatch:Nt,assertTypesMatch:Ft,isTensorInList:function(t,e){return e.some((function(e){return e.id===t.id}))},getTensorsInContainer:_t}),Bt=function(){function t(){this.registeredVariables={},this.nextTapeNodeId=0,this.numBytes=0,this.numTensors=0,this.numStringTensors=0,this.numDataBuffers=0,this.gradientDepth=0,this.kernelDepth=0,this.scopeStack=[],this.numDataMovesStack=[],this.nextScopeId=0,this.tensorInfo=new WeakMap,this.profiling=!1,this.activeProfile={newBytes:0,newTensors:0,peakBytes:0,kernels:[],result:null}}return t.prototype.dispose=function(){for(var t in this.registeredVariables)this.registeredVariables[t].dispose()},t}(),Pt=function(){function t(t){this.ENV=t,this.registry={},this.registryFactory={},this.pendingBackendInitId=0,this.state=new Bt}return t.prototype.ready=function(){return n(this,void 0,void 0,(function(){var t,e,n;return r(this,(function(r){switch(r.label){case 0:if(null!=this.pendingBackendInit)return[2,this.pendingBackendInit.then((function(){}))];if(null!=this.backendInstance)return[2];t=this.getSortedBackends(),e=0,r.label=1;case 1:return e<t.length?(n=t[e],[4,this.initializeBackend(n).success]):[3,5];case 2:return r.sent()?[4,this.setBackend(n)]:[3,4];case 3:return r.sent(),[2];case 4:return e++,[3,1];case 5:throw new Error("Could not initialize any backends, all backend initializations failed.")}}))}))},Object.defineProperty(t.prototype,"backend",{get:function(){if(null!=this.pendingBackendInit)throw new Error("Backend '"+this.backendName+"' has not yet been initialized. Make sure to await tf.ready() or await tf.setBackend() before calling other methods");if(null==this.backendInstance){var t=this.initializeBackendsAndReturnBest(),e=t.name;if(t.asyncInit)throw new Error("The highest priority backend '"+e+"' has not yet been initialized. Make sure to await tf.ready() or await tf.setBackend() before calling other methods");this.setBackend(e)}return this.backendInstance},enumerable:!0,configurable:!0}),t.prototype.backendNames=function(){return Object.keys(this.registryFactory)},t.prototype.findBackend=function(t){if(!(t in this.registry)){if(!(t in this.registryFactory))return null;if(this.initializeBackend(t).asyncInit)return null}return this.registry[t]},t.prototype.findBackendFactory=function(t){return t in this.registryFactory?this.registryFactory[t].factory:null},t.prototype.registerBackend=function(t,e,n){return void 0===n&&(n=1),t in this.registryFactory?(console.warn(t+" backend was already registered. Reusing existing backend factory."),!1):(this.registryFactory[t]={factory:e,priority:n},!0)},t.prototype.setBackend=function(t){return n(this,void 0,void 0,(function(){var e,n,o;return r(this,(function(r){switch(r.label){case 0:if(null==this.registryFactory[t])throw new Error("Backend name '"+t+"' not found in registry");return this.backendName=t,null!=this.registry[t]?[3,4]:(this.backendInstance=null,e=this.initializeBackend(t),n=e.success,e.asyncInit?[4,n]:[3,2]);case 1:return o=r.sent(),[3,3];case 2:o=n,r.label=3;case 3:if(!o)return[2,!1];r.label=4;case 4:return this.backendInstance=this.registry[t],this.setupRegisteredKernels(),this.profiler=new ut(this.backendInstance),[2,!0]}}))}))},t.prototype.setupRegisteredKernels=function(){var t=this;f(this.backendName).forEach((function(e){null!=e.setupFunc&&e.setupFunc(t.backendInstance)}))},t.prototype.disposeRegisteredKernels=function(t){var e=this;f(t).forEach((function(n){null!=n.disposeFunc&&n.disposeFunc(e.registry[t])}))},t.prototype.initializeBackend=function(t){var e=this,n=this.registryFactory[t];if(null==n)throw new Error("Cannot initialize backend "+t+", no registration found.");try{var r=n.factory();if(Promise.resolve(r)===r){var o=++this.pendingBackendInitId,a=r.then((function(n){return!(o<e.pendingBackendInitId)&&(e.registry[t]=n,e.pendingBackendInit=null,!0)})).catch((function(n){return!(o<e.pendingBackendInitId)&&(e.pendingBackendInit=null,console.warn("Initialization of backend "+t+" failed"),console.warn(n.stack||n.message),!1)}));return this.pendingBackendInit=a,{success:a,asyncInit:!0}}return this.registry[t]=r,{success:!0,asyncInit:!1}}catch(e){return console.warn("Initialization of backend "+t+" failed"),console.warn(e.stack||e.message),{success:!1,asyncInit:!1}}},t.prototype.removeBackend=function(t){if(!(t in this.registryFactory))throw new Error(t+" backend not found in registry");this.backendName===t&&null!=this.pendingBackendInit&&this.pendingBackendInitId++,t in this.registry&&(this.disposeRegisteredKernels(t),this.registry[t].dispose(),delete this.registry[t]),delete this.registryFactory[t],this.backendName===t&&(this.pendingBackendInit=null,this.backendName=null,this.backendInstance=null)},t.prototype.getSortedBackends=function(){var t=this;if(0===Object.keys(this.registryFactory).length)throw new Error("No backend found in registry.");return Object.keys(this.registryFactory).sort((function(e,n){return t.registryFactory[n].priority-t.registryFactory[e].priority}))},t.prototype.initializeBackendsAndReturnBest=function(){for(var t=this.getSortedBackends(),e=0;e<t.length;e++){var n=t[e],r=this.initializeBackend(n),o=r.success,a=r.asyncInit;if(a||o)return{name:n,asyncInit:a}}throw new Error("Could not initialize any backends, all backend initializations failed.")},t.prototype.moveData=function(t,e){var n=this.state.tensorInfo.get(e),r=n.backend,o=this.readSync(e);r.disposeData(e),n.backend=t,t.move(e,o,n.shape,n.dtype),this.shouldCheckForMemLeaks()&&this.state.numDataMovesStack[this.state.numDataMovesStack.length-1]++},t.prototype.tidy=function(t,e){var n,r=this,o=null;if(null==e){if("function"!=typeof t)throw new Error("Please provide a function to tidy()");e=t}else{if("string"!=typeof t&&!(t instanceof String))throw new Error("When calling with two arguments, the first argument to tidy() must be a string");if("function"!=typeof e)throw new Error("When calling with two arguments, the 2nd argument to tidy() must be a function");o=t}return this.scopedRun((function(){return r.startScope(o)}),(function(){return r.endScope(n)}),(function(){return(n=e())instanceof Promise&&console.error("Cannot return a Promise inside of tidy."),n}))},t.prototype.scopedRun=function(t,e,n){t();try{var r=n();return e(),r}catch(t){throw e(),t}},t.prototype.nextTensorId=function(){return t.nextTensorId++},t.prototype.nextVariableId=function(){return t.nextVariableId++},t.prototype.clone=function(t){var e=this.makeTensorFromDataId(t.dataId,t.shape,t.dtype),n={x:t};return this.addTapeNode(this.state.activeScope.name,n,[e],(function(t){return{x:function(){return t.toFloat()}}}),[]),e},t.prototype.runKernel=function(t,e,n,r,o){return this.runKernelFunc(null,e,null,t,n,r,o)},t.prototype.shouldCheckForMemLeaks=function(){return this.ENV.getBool("IS_TEST")},t.prototype.checkKernelForMemLeak=function(t,e,n){var r=this.backend.numDataIds(),o=0;n.forEach((function(t){o+="complex64"===t.dtype?3:1}));var a=this.state.numDataMovesStack[this.state.numDataMovesStack.length-1],i=r-e-o-a;if(i>0)throw new Error("Backend '"+this.backendName+"' has an internal memory leak ("+i+" data ids) after running '"+t+"'")},t.prototype.runKernelFunc=function(t,e,n,r,o,a,i){var s,u=this;void 0===a&&(a=[]),void 0===i&&(i=[]);var c=[],h=this.isTapeOn();null==r&&(r=null!=this.state.activeScope?this.state.activeScope.name:"");var f,d=function(t){h&&(c=t.map((function(t){return u.keep(u.clone(t))})))},p=this.state.numBytes,v=this.state.numTensors;this.shouldCheckForMemLeaks()&&this.state.numDataMovesStack.push(0);var m,g=l(r,this.backendName);return f=null!=g?function(){var t=u.backend.numDataIds();m=g.kernelFunc({inputs:e,attrs:o,backend:u.backend});var n=Array.isArray(m)?m:[m];u.shouldCheckForMemLeaks()&&u.checkKernelForMemLeak(r,t,n);var s=n.map((function(t){var e=t.dataId,n=t.shape,r=t.dtype;return u.makeTensorFromDataId(e,n,r)})),c=s.filter((function(t,e){return i[e]}));return d((a||[]).slice().concat(c)),s}:function(){var e=u.backend.numDataIds();m=u.tidy((function(){return t(u.backend,d)}));var n=Array.isArray(m)?m:[m];return u.shouldCheckForMemLeaks()&&u.checkKernelForMemLeak(r,e,n),n},this.scopedRun((function(){return u.state.kernelDepth++}),(function(){return u.state.kernelDepth--}),(function(){s=u.ENV.getBool("DEBUG")?u.profiler.profileKernel(r,e,(function(){return f()})):f()})),h&&this.addTapeNode(r,e,s,n,c),this.state.profiling&&this.state.activeProfile.kernels.push({name:r,bytesAdded:this.state.numBytes-p,totalBytesSnapshot:this.state.numBytes,tensorsAdded:this.state.numTensors-v,totalTensorsSnapshot:this.state.numTensors,inputShapes:Object.keys(e).map((function(t){return e[t].shape})),outputShapes:s.map((function(t){return t.shape}))}),Array.isArray(m)?s:s[0]},t.prototype.makeTensor=function(t,e,n,r){if(null==t)throw new Error("Values passed to engine.makeTensor() are null");n=n||"float32",r=r||this.backend;var o=t;"string"===n&&H(t[0])&&(o=t.map((function(t){return rt(t)})));var a=r.write(o,e,n),i=new wt(e,n,a,this.nextTensorId());if(this.incRef(i,r),"string"===n){var s=this.state.tensorInfo.get(a),u=G(o);this.state.numBytes+=u-s.bytes,s.bytes=u}return i},t.prototype.makeTensorFromDataId=function(t,e,n,r){var o=new wt(e,n=n||"float32",t,this.nextTensorId());return this.incRef(o,r),o},t.prototype.makeVariable=function(t,e,n,r){void 0===e&&(e=!0),n=n||this.nextVariableId().toString(),null!=r&&r!==t.dtype&&(t=t.asType(r));var o=new St(t,e,n,this.nextTensorId());if(null!=this.state.registeredVariables[o.name])throw new Error("Variable with name "+o.name+" was already registered");return this.state.registeredVariables[o.name]=o,this.incRef(o,this.backend),o},t.prototype.incRef=function(t,e){var n=this.state.tensorInfo.has(t.dataId)?this.state.tensorInfo.get(t.dataId).refCount:0;if(this.state.numTensors++,"string"===t.dtype&&this.state.numStringTensors++,0===n){this.state.numDataBuffers++;var r=0;"complex64"!==t.dtype&&"string"!==t.dtype&&(r=t.size*z(t.dtype)),this.state.tensorInfo.set(t.dataId,{backend:e||this.backend,dtype:t.dtype,shape:t.shape,bytes:r,refCount:0}),this.state.numBytes+=r}this.state.tensorInfo.get(t.dataId).refCount++,t instanceof St||this.track(t)},t.prototype.disposeTensor=function(t){if(this.state.tensorInfo.has(t.dataId)){this.state.numTensors--,"string"===t.dtype&&this.state.numStringTensors--;var e=this.state.tensorInfo.get(t.dataId);e.refCount<=1?("complex64"!==t.dtype&&(this.state.numBytes-=e.bytes),this.state.numDataBuffers--,e.backend.disposeData(t.dataId),this.state.tensorInfo.delete(t.dataId)):this.state.tensorInfo.get(t.dataId).refCount--}},t.prototype.disposeVariables=function(){for(var t in this.state.registeredVariables){var e=this.state.registeredVariables[t];this.disposeVariable(e)}},t.prototype.disposeVariable=function(t){this.disposeTensor(t),null!=this.state.registeredVariables[t.name]&&delete this.state.registeredVariables[t.name]},t.prototype.memory=function(){var t=this.backend.memory();return t.numTensors=this.state.numTensors,t.numDataBuffers=this.state.numDataBuffers,t.numBytes=this.state.numBytes,this.state.numStringTensors>0&&(t.unreliable=!0,null==t.reasons&&(t.reasons=[]),t.reasons.push("Memory usage by string tensors is approximate (2 bytes per character)")),t},t.prototype.profile=function(t){return n(this,void 0,void 0,(function(){var e,n;return r(this,(function(r){return this.state.profiling=!0,e=this.state.numBytes,n=this.state.numTensors,this.state.activeProfile.kernels=[],this.state.activeProfile.result=t(),this.state.profiling=!1,this.state.activeProfile.peakBytes=Math.max.apply(Math,this.state.activeProfile.kernels.map((function(t){return t.totalBytesSnapshot}))),this.state.activeProfile.newBytes=this.state.numBytes-e,this.state.activeProfile.newTensors=this.state.numTensors-n,[2,this.state.activeProfile]}))}))},t.prototype.isTapeOn=function(){return this.state.gradientDepth>0&&0===this.state.kernelDepth},t.prototype.addTapeNode=function(t,e,n,r,o){var a=this,i={id:this.state.nextTapeNodeId++,kernelName:t,inputs:e,outputs:n,saved:o},s=h(t);null!=s&&(r=s.gradFunc),null!=r&&(i.gradient=function(t){return t=t.map((function(t,e){if(null==t){var r=n[e],o=tt(r.size,r.dtype);return a.makeTensor(o,r.shape,r.dtype)}return t})),r(t.length>1?t:t[0],o)}),this.state.activeTape.push(i)},t.prototype.keep=function(t){return t.kept=!0,t},t.prototype.startTape=function(){0===this.state.gradientDepth&&(this.state.activeTape=[]),this.state.gradientDepth++},t.prototype.endTape=function(){this.state.gradientDepth--},t.prototype.startScope=function(t){var e={track:[],name:"unnamed scope",id:this.state.nextScopeId++};t&&(e.name=t),this.state.scopeStack.push(e),this.state.activeScope=e},t.prototype.endScope=function(t){for(var e=this,n=_t(t),r=new Set(n.map((function(t){return t.id}))),o=0;o<this.state.activeScope.track.length;o++){var a=this.state.activeScope.track[o];a.kept||r.has(a.id)||a.dispose()}var i=this.state.scopeStack.pop();this.state.activeScope=0===this.state.scopeStack.length?null:this.state.scopeStack[this.state.scopeStack.length-1],n.forEach((function(t){t.kept||t.scopeId!==i.id||e.track(t)}))},t.prototype.gradients=function(t,e,n,r){var o=this;if(void 0===r&&(r=!1),C(e.length>0,(function(){return"gradients() received an empty list of xs."})),null!=n&&"float32"!==n.dtype)throw new Error("dy must have 'float32' dtype, but has '"+n.dtype+"'");var a=this.scopedRun((function(){return o.startTape()}),(function(){return o.endTape()}),(function(){return o.tidy("forward",t)}));C(a instanceof wt,(function(){return"The result y returned by f() must be a tensor."}));var i=function(t,e,n){for(var r={},o={},a=0;a<e.length;a++)r[e[a].id]=!0;for(a=0;a<t.length;a++){var i=(p=t[a]).inputs;for(var s in i){for(var u=i[s],c=!1,l=0;l<e.length;l++)if(r[u.id]){p.outputs.forEach((function(t){return r[t.id]=!0})),c=!0,o[p.id]=!0;break}if(c)break}}var h={};h[n.id]=!0;var f={};for(a=t.length-1;a>=0;a--)for(i=(p=t[a]).inputs,l=0;l<p.outputs.length;l++)if(h[p.outputs[l].id]){for(var s in i)h[i[s].id]=!0,f[p.id]=!0;break}var d=[];for(a=0;a<t.length;a++){var p;if(o[(p=t[a]).id]&&f[p.id]){var v={};for(var s in p.inputs){var m=p.inputs[s];r[m.id]&&(v[s]=m)}var g=Object.assign({},p);g.inputs=v,g.outputs=p.outputs,d.push(g)}}return d}(this.state.activeTape,e,a);if(!r&&0===i.length&&e.length>0)throw new Error("Cannot compute gradient of y=f(x) with respect to x. Make sure that the f you passed encloses all operations that lead from x to y.");return this.tidy("backward",(function(){var t,r,s={};s[a.id]=null==n?(t=a.shape,r=Z(k(t),"float32"),Lt.makeTensor(r,t,"float32")):n,function(t,e,n){for(var r=function(r){var o=e[r],a=[];if(o.outputs.forEach((function(e){var n=t[e.id];null!=n?a.push(n):a.push(null)})),null==o.gradient)throw new Error("Cannot compute gradient: gradient function not found for "+o.kernelName+".");var i=o.gradient(a),s=function(e){if(!(e in i))throw new Error("Cannot backprop through input "+e+". Available gradients found: "+Object.keys(i)+".");var r=n((function(){return i[e]()}));if("float32"!==r.dtype)throw new Error("Error in gradient for op "+o.kernelName+". The gradient of input "+e+" must have 'float32' dtype, but has '"+r.dtype+"'");var a=o.inputs[e];if(!S(r.shape,a.shape))throw new Error("Error in gradient for op "+o.kernelName+". The gradient of input '"+e+"' has shape '"+r.shape+"', which does not match the shape of the input '"+a.shape+"'");if(null==t[a.id])t[a.id]=r;else{var s=t[a.id];t[a.id]=s.add(r),s.dispose()}};for(var u in o.inputs)s(u)},o=e.length-1;o>=0;o--)r(o)}(s,i,(function(t){return o.tidy(t)}));var u=e.map((function(t){return s[t.id]}));return 0===o.state.gradientDepth&&(o.state.activeTape.forEach((function(t){for(var e=0,n=t.saved;e<n.length;e++){n[e].dispose()}})),o.state.activeTape=null),{value:a,grads:u}}))},t.prototype.customGrad=function(t){var e=this;return C(X(t),(function(){return"The f passed in customGrad(f) must be a function."})),function(){for(var n,r=[],o=0;o<arguments.length;o++)r[o]=arguments[o];C(r.every((function(t){return t instanceof wt})),(function(){return"The args passed in customGrad(f)(x1, x2,...) must all be tensors"}));var a={};return r.forEach((function(t,e){a[e]=t})),e.runKernelFunc((function(e,o){return C((n=t.apply(void 0,r.concat([o]))).value instanceof wt,(function(){return"The function f passed in customGrad(f) must return an object where `obj.value` is a tensor"})),C(X(n.gradFunc),(function(){return"The function f passed in customGrad(f) must return an object where `obj.gradFunc` is a function."})),n.value}),a,(function(t,e){var o=n.gradFunc(t,e),a=Array.isArray(o)?o:[o];C(a.length===r.length,(function(){return"The function f passed in customGrad(f) must return an object where `obj.gradFunc` is a function that returns the same number of tensors as inputs passed to f(...)."})),C(a.every((function(t){return t instanceof wt})),(function(){return"The function f passed in customGrad(f) must return an object where `obj.gradFunc` is a function that returns a list of only tensors."}));var i={};return a.forEach((function(t,e){i[e]=function(){return t}})),i}))}},t.prototype.readSync=function(t){return this.state.tensorInfo.get(t).backend.readSync(t)},t.prototype.read=function(t){return this.state.tensorInfo.get(t).backend.read(t)},t.prototype.time=function(t){return n(this,void 0,void 0,(function(){var e,n;return r(this,(function(r){switch(r.label){case 0:return e=et(),[4,this.backend.time(t)];case 1:return(n=r.sent()).wallMs=et()-e,[2,n]}}))}))},t.prototype.track=function(t){return null!=this.state.activeScope&&(t.scopeId=this.state.activeScope.id,this.state.activeScope.track.push(t)),t},Object.defineProperty(t.prototype,"registeredVariables",{get:function(){return this.state.registeredVariables},enumerable:!0,configurable:!0}),t.prototype.reset=function(){for(var t in this.pendingBackendInitId++,this.state.dispose(),this.ENV.reset(),this.state=new Bt,this.registry)this.disposeRegisteredKernels(t),this.registry[t].dispose(),delete this.registry[t];this.backendName=null,this.backendInstance=null,this.pendingBackendInit=null},t.nextTensorId=0,t.nextVariableId=0,t}();var Lt=function(){var t=function(){if(null==Ot){var t=void 0;if("undefined"!=typeof window)t=window;else if("undefined"!=typeof global)t=global;else if("undefined"!=typeof process)t=process;else{if("undefined"==typeof self)throw new Error("Could not find a global object");t=self}Ot=t}return Ot}();if(null==t._tfengine){var e=new o(t);t._tfengine=new Pt(e)}return function(t){s=t}(t._tfengine.ENV),yt=function(){return t._tfengine},t._tfengine}();function Wt(){return"undefined"!=typeof window&&null!=window.document||"undefined"!=typeof WorkerGlobalScope}var Ut=i();Ut.registerFlag("DEBUG",(function(){return!1}),(function(t){t&&console.warn("Debugging mode is ON. The output of every math call will be downloaded to CPU and checked for NaNs. This significantly impacts performance.")})),Ut.registerFlag("IS_BROWSER",(function(){return Wt()})),Ut.registerFlag("IS_NODE",(function(){return"undefined"!=typeof process&&void 0!==process.versions&&void 0!==process.versions.node})),Ut.registerFlag("IS_CHROME",(function(){return"undefined"!=typeof navigator&&null!=navigator&&null!=navigator.userAgent&&/Chrome/.test(navigator.userAgent)&&/Google Inc/.test(navigator.vendor)})),Ut.registerFlag("PROD",(function(){return!1})),Ut.registerFlag("TENSORLIKE_CHECK_SHAPE_CONSISTENCY",(function(){return Ut.getBool("DEBUG")})),Ut.registerFlag("DEPRECATION_WARNINGS_ENABLED",(function(){return!0})),Ut.registerFlag("IS_TEST",(function(){return!1}));var Vt,zt,Gt,Ht={},qt={alpha:!1,antialias:!1,premultipliedAlpha:!1,preserveDrawingBuffer:!1,depth:!1,stencil:!1,failIfMajorPerformanceCaveat:!0};function Kt(t,e){Ht[t]=e}function jt(t){t in Ht||(Ht[t]=function(t){if(1!==t&&2!==t)throw new Error("Cannot get WebGL rendering context, WebGL is disabled.");var e=function(t){if("undefined"!=typeof OffscreenCanvas&&2===t)return new OffscreenCanvas(300,150);if("undefined"!=typeof document)return document.createElement("canvas");throw new Error("Cannot create a canvas in this context")}(t);if(e.addEventListener("webglcontextlost",(function(e){e.preventDefault(),delete Ht[t]}),!1),1===t)return e.getContext("webgl",qt)||e.getContext("experimental-webgl",qt);return e.getContext("webgl2",qt)}(t));var e=Ht[t];return e.isContextLost()?(delete Ht[t],jt(t)):(e.disable(e.DEPTH_TEST),e.disable(e.STENCIL_TEST),e.disable(e.BLEND),e.disable(e.DITHER),e.disable(e.POLYGON_OFFSET_FILL),e.disable(e.SAMPLE_COVERAGE),e.enable(e.SCISSOR_TEST),e.enable(e.CULL_FACE),e.cullFace(e.BACK),Ht[t])}function Xt(t,e){return[e,t]}function Yt(t){var e=k(t);return T(Math.ceil(e/4))}function $t(t,e){return[Math.max(1,Math.ceil(e/2)),Math.max(1,Math.ceil(t/2))]}function Qt(t,e){var n,r,o,a,s,u,c,l,h,f=t;return 2===i().getNumber("WEBGL_VERSION")?(n=f.R32F,r=f.R16F,o=f.RGBA16F,a=f.RGBA32F,s=f.RED,u=4,c=1,l=f.HALF_FLOAT,h=f.FLOAT):(n=t.RGBA,r=t.RGBA,o=t.RGBA,a=f.RGBA,s=t.RGBA,u=4,c=4,l=null!=e?e.HALF_FLOAT_OES:null,h=t.FLOAT),{internalFormatFloat:n,internalFormatHalfFloat:r,internalFormatPackedHalfFloat:o,internalFormatPackedFloat:a,textureFormatFloat:s,downloadTextureFormat:t.RGBA,downloadUnpackNumChannels:u,defaultNumChannels:c,textureTypeHalfFloat:l,textureTypeFloat:h}}function Jt(t,e,n){var r=n();return e&&function(t){var e=t.getError();if(e!==t.NO_ERROR)throw new Error("WebGL Error: "+ne(t,e))}(t),r}!function(t){t[t.DENSE=0]="DENSE",t[t.SHARED_BATCH=1]="SHARED_BATCH"}(Vt||(Vt={})),function(t){t[t.RENDER=0]="RENDER",t[t.UPLOAD=1]="UPLOAD",t[t.PIXELS=2]="PIXELS",t[t.DOWNLOAD=3]="DOWNLOAD"}(zt||(zt={})),function(t){t[t.UNPACKED_FLOAT16=0]="UNPACKED_FLOAT16",t[t.UNPACKED_FLOAT32=1]="UNPACKED_FLOAT32",t[t.PACKED_4X1_UNSIGNED_BYTE=2]="PACKED_4X1_UNSIGNED_BYTE",t[t.PACKED_2X2_FLOAT32=3]="PACKED_2X2_FLOAT32",t[t.PACKED_2X2_FLOAT16=4]="PACKED_2X2_FLOAT16"}(Gt||(Gt={}));var Zt=5.96e-8,te=65504;function ee(t){return!!(i().getBool("WEBGL_RENDER_FLOAT32_ENABLED")||0===t||Zt<Math.abs(t)&&Math.abs(t)<te)}function ne(t,e){switch(e){case t.NO_ERROR:return"NO_ERROR";case t.INVALID_ENUM:return"INVALID_ENUM";case t.INVALID_VALUE:return"INVALID_VALUE";case t.INVALID_OPERATION:return"INVALID_OPERATION";case t.INVALID_FRAMEBUFFER_OPERATION:return"INVALID_FRAMEBUFFER_OPERATION";case t.OUT_OF_MEMORY:return"OUT_OF_MEMORY";case t.CONTEXT_LOST_WEBGL:return"CONTEXT_LOST_WEBGL";default:return"Unknown error code "+e}}function re(t,e,n){return ke(t,e,(function(){return t.getExtension(n)}),'Extension "'+n+'" not supported on this browser.')}function oe(t,e,n){var r=ke(t,e,(function(){return t.createShader(t.VERTEX_SHADER)}),"Unable to create vertex WebGLShader.");if(Jt(t,e,(function(){return t.shaderSource(r,n)})),Jt(t,e,(function(){return t.compileShader(r)})),!1===t.getShaderParameter(r,t.COMPILE_STATUS))throw console.log(t.getShaderInfoLog(r)),new Error("Failed to compile vertex shader.");return r}function ae(t,e,n){var r=ke(t,e,(function(){return t.createShader(t.FRAGMENT_SHADER)}),"Unable to create fragment WebGLShader.");if(Jt(t,e,(function(){return t.shaderSource(r,n)})),Jt(t,e,(function(){return t.compileShader(r)})),!1===t.getShaderParameter(r,t.COMPILE_STATUS))throw function(t,e){var n=ue.exec(e);if(null==n)return console.log("Couldn't parse line number in error: "+e),void console.log(t);for(var r=+n[1],o=t.split("\n"),a=o.length.toString().length+2,i=o.map((function(t,e){return N((e+1).toString(),a)+t})),s=0,u=0;u<i.length;u++)s=Math.max(i[u].length,s);var c=i.slice(0,r-1),l=i.slice(r-1,r),h=i.slice(r);console.log(c.join("\n")),console.log(e.split("\n")[0]),console.log("%c "+N(l[0],s),"border:1px solid red; background-color:#e3d2d2; color:#a61717"),console.log(h.join("\n"))}(n,t.getShaderInfoLog(r)),new Error("Failed to compile fragment shader.");return r}var ie,se,ue=/ERROR: [0-9]+:([0-9]+):/g;function ce(t,e){return ke(t,e,(function(){return t.createProgram()}),"Unable to create WebGLProgram.")}function le(t,e,n){if(Jt(t,e,(function(){return t.linkProgram(n)})),!1===t.getProgramParameter(n,t.LINK_STATUS))throw console.log(t.getProgramInfoLog(n)),new Error("Failed to link vertex and fragment shaders.")}function he(t,e,n){if(Jt(t,e,(function(){return t.validateProgram(n)})),!1===t.getProgramParameter(n,t.VALIDATE_STATUS))throw console.log(t.getProgramInfoLog(n)),new Error("Shader program validation failed.")}function fe(t,e,n){var r=ke(t,e,(function(){return t.createBuffer()}),"Unable to create WebGLBuffer");return Jt(t,e,(function(){return t.bindBuffer(t.ARRAY_BUFFER,r)})),Jt(t,e,(function(){return t.bufferData(t.ARRAY_BUFFER,n,t.STATIC_DRAW)})),r}function de(t,e,n){var r=ke(t,e,(function(){return t.createBuffer()}),"Unable to create WebGLBuffer");return Jt(t,e,(function(){return t.bindBuffer(t.ELEMENT_ARRAY_BUFFER,r)})),Jt(t,e,(function(){return t.bufferData(t.ELEMENT_ARRAY_BUFFER,n,t.STATIC_DRAW)})),r}function pe(t,e){return ke(t,e,(function(){return t.createTexture()}),"Unable to create WebGLTexture.")}function ve(t,e){var n=i().getNumber("WEBGL_MAX_TEXTURE_SIZE");if(t<=0||e<=0){var r="["+t+"x"+e+"]";throw new Error("Requested texture size "+r+" is invalid.")}if(t>n||e>n){r="["+t+"x"+e+"]";throw new Error("Requested texture size "+r+" greater than WebGL maximum on this browser / GPU "+("["+n+"x"+n+"]")+".")}}function me(t,e){return ke(t,e,(function(){return t.createFramebuffer()}),"Unable to create WebGLFramebuffer.")}function ge(t,e,n,r,o,a,i,s){var u=t.getAttribLocation(n,r);return-1!==u&&(Jt(t,e,(function(){return t.bindBuffer(t.ARRAY_BUFFER,o)})),Jt(t,e,(function(){return t.vertexAttribPointer(u,a,t.FLOAT,!1,i,s)})),Jt(t,e,(function(){return t.enableVertexAttribArray(u)})),!0)}function ye(t,e,n,r){Se(t,r),Jt(t,e,(function(){return t.activeTexture(t.TEXTURE0+r)})),Jt(t,e,(function(){return t.bindTexture(t.TEXTURE_2D,n)}))}function xe(t,e,n,r){return ke(t,e,(function(){return t.getUniformLocation(n,r)}),'uniform "'+r+'" not present in program.')}function be(t,e,n){return t.getUniformLocation(e,n)}function we(t,e,n,r,o,a){Jt(t,e,(function(){return ye(t,e,r,a)})),Jt(t,e,(function(){return t.uniform1i(o,a)}))}function Ce(t,e,n,r){Jt(t,e,(function(){return t.bindFramebuffer(t.FRAMEBUFFER,r)})),Jt(t,e,(function(){return t.framebufferTexture2D(t.FRAMEBUFFER,t.COLOR_ATTACHMENT0,t.TEXTURE_2D,n,0)}))}function Ee(t,e,n){Jt(t,e,(function(){return t.bindFramebuffer(t.FRAMEBUFFER,n)})),Jt(t,e,(function(){return t.framebufferTexture2D(t.FRAMEBUFFER,t.COLOR_ATTACHMENT0,t.TEXTURE_2D,null,0)}))}function Re(t){var e=t.checkFramebufferStatus(t.FRAMEBUFFER);if(e!==t.FRAMEBUFFER_COMPLETE)throw new Error("Error binding framebuffer: "+Ie(t,e))}function Ie(t,e){switch(e){case t.FRAMEBUFFER_INCOMPLETE_ATTACHMENT:return"FRAMEBUFFER_INCOMPLETE_ATTACHMENT";case t.FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT:return"FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT";case t.FRAMEBUFFER_INCOMPLETE_DIMENSIONS:return"FRAMEBUFFER_INCOMPLETE_DIMENSIONS";case t.FRAMEBUFFER_UNSUPPORTED:return"FRAMEBUFFER_UNSUPPORTED";default:return"unknown error "+e}}function ke(t,e,n,r){var o=Jt(t,e,(function(){return n()}));if(null==o)throw new Error(r);return o}function Se(t,e){var n=t.MAX_COMBINED_TEXTURE_IMAGE_UNITS-1,r=e+t.TEXTURE0;if(r<t.TEXTURE0||r>n)throw new Error("textureUnit must be in "+("[gl.TEXTURE0, gl.TEXTURE"+n+"]")+".")}function Ae(t,e){return void 0===e&&(e=2),k(t.slice(0,t.length-e))}function De(t){if(0===t.length)throw Error("Cannot get rows and columns of an empty shape array.");return[t.length>1?t[t.length-2]:1,t[t.length-1]]}function Te(t){var e=[1,1,1];return 0===t.length||1===t.length&&1===t[0]||(e=[Ae(t)].concat(De(t))),e}function Ne(t,e){var n;void 0===e&&(e=!1);var r=i().getNumber("WEBGL_MAX_TEXTURE_SIZE");if(e&&(r*=2,1===(t=t.map((function(e,n){return n>=t.length-2?b(t[n]):t[n]}))).length&&(t=[2,t[0]])),2!==t.length){var o=M(t);t=o.newShape}var a=k(t);if(t.length<=1&&a<=r)return[1,a];if(2===t.length&&t[0]<=r&&t[1]<=r)return t;if(3===t.length&&t[0]*t[1]<=r&&t[2]<=r)return[t[0]*t[1],t[2]];if(3===t.length&&t[0]<=r&&t[1]*t[2]<=r)return[t[0],t[1]*t[2]];if(4===t.length&&t[0]*t[1]*t[2]<=r&&t[3]<=r)return[t[0]*t[1]*t[2],t[3]];if(4===t.length&&t[0]<=r&&t[1]*t[2]*t[3]<=r)return[t[0],t[1]*t[2]*t[3]];if(e){var s=Ae(t),u=2,c=2;return t.length&&(u=(n=De(t))[0],c=n[1]),T(a=s*(u/2)*(c/2)).map((function(t){return 2*t}))}return T(a)}function Fe(t){return t%2==0}function _e(t,e){if(S(t=t.slice(-2),e=e.slice(-2)))return!0;if(!t.length||!e.length)return!0;if(0===t[0]||0===t[1]||0===e[0]||0===e[1])return!0;if(t.length!==e.length){var n=t.slice(-1)[0],r=e.slice(-1)[0];if(n===r)return!0;if(Fe(n)&&Fe(r)&&(1===t[0]||1===e[0]))return!0}return t[1]===e[1]&&Fe(t[0])&&Fe(e[0])}function Oe(t){if(null==ie){var e=jt(t);ie=e.getParameter(e.MAX_TEXTURE_SIZE)}return ie}function Me(t){if(null==se){var e=jt(t);se=e.getParameter(e.MAX_TEXTURE_IMAGE_UNITS)}return Math.min(16,se)}function Be(t){if(0===t)return 0;var e=jt(t);return Pe(e,"EXT_disjoint_timer_query_webgl2")&&2===t?2:Pe(e,"EXT_disjoint_timer_query")?1:0}function Pe(t,e){return null!=t.getExtension(e)}function Le(t){try{if(null!=jt(t))return!0}catch(t){return!1}return!1}function We(t){if(0===t)return!1;var e=jt(t);if(1===t){if(!Pe(e,"OES_texture_float"))return!1}else if(!Pe(e,"EXT_color_buffer_float"))return!1;return Ve(e)}function Ue(t){if(0===t)return!1;var e=jt(t);if(1!==t){if(Pe(e,"EXT_color_buffer_float"))return Ve(e);if(Pe(e,"EXT_color_buffer_half_float")){var n=e.getExtension("EXT_color_buffer_half_float");return function(t,e){var n=Qt(t,e),r=t.createTexture();t.bindTexture(t.TEXTURE_2D,r);t.texImage2D(t.TEXTURE_2D,0,n.internalFormatHalfFloat,1,1,0,n.textureFormatFloat,n.textureTypeHalfFloat,null);var o=t.createFramebuffer();t.bindFramebuffer(t.FRAMEBUFFER,o),t.framebufferTexture2D(t.FRAMEBUFFER,t.COLOR_ATTACHMENT0,t.TEXTURE_2D,r,0);var a=t.checkFramebufferStatus(t.FRAMEBUFFER)===t.FRAMEBUFFER_COMPLETE;return t.bindTexture(t.TEXTURE_2D,null),t.bindFramebuffer(t.FRAMEBUFFER,null),t.deleteTexture(r),t.deleteFramebuffer(o),a}(e,n)}return!1}return!!Pe(e,"OES_texture_float")&&(!!Pe(e,"WEBGL_color_buffer_float")&&Ve(e))}function Ve(t){var e=Qt(t),n=t.createTexture();t.bindTexture(t.TEXTURE_2D,n);t.texImage2D(t.TEXTURE_2D,0,e.internalFormatFloat,1,1,0,e.textureFormatFloat,e.textureTypeFloat,null);var r=t.createFramebuffer();t.bindFramebuffer(t.FRAMEBUFFER,r),t.framebufferTexture2D(t.FRAMEBUFFER,t.COLOR_ATTACHMENT0,t.TEXTURE_2D,n,0);var o=t.checkFramebufferStatus(t.FRAMEBUFFER)===t.FRAMEBUFFER_COMPLETE;return t.bindTexture(t.TEXTURE_2D,null),t.bindFramebuffer(t.FRAMEBUFFER,null),t.deleteTexture(n),t.deleteFramebuffer(r),o}function ze(t){return 2===t&&null!=jt(t).fenceSync}var Ge=Object.freeze({callAndCheck:Jt,canBeRepresented:ee,getWebGLErrorMessage:ne,getExtensionOrThrow:re,createVertexShader:oe,createFragmentShader:ae,createProgram:ce,linkProgram:le,validateProgram:he,createStaticVertexBuffer:fe,createStaticIndexBuffer:de,getNumChannels:function(){return 2===i().getNumber("WEBGL_VERSION")?1:4},createTexture:pe,validateTextureSize:ve,createFramebuffer:me,bindVertexBufferToProgramAttribute:ge,bindTextureUnit:ye,unbindTextureUnit:function(t,e,n){Se(t,n),Jt(t,e,(function(){return t.activeTexture(t.TEXTURE0+n)})),Jt(t,e,(function(){return t.bindTexture(t.TEXTURE_2D,null)}))},getProgramUniformLocationOrThrow:xe,getProgramUniformLocation:be,bindTextureToProgramUniformSampler:we,bindCanvasToFramebuffer:function(t,e){Jt(t,e,(function(){return t.bindFramebuffer(t.FRAMEBUFFER,null)})),Jt(t,e,(function(){return t.viewport(0,0,t.canvas.width,t.canvas.height)})),Jt(t,e,(function(){return t.scissor(0,0,t.canvas.width,t.canvas.height)}))},bindColorTextureToFramebuffer:Ce,unbindColorTextureFromFramebuffer:Ee,validateFramebuffer:Re,getFramebufferErrorMessage:Ie,getBatchDim:Ae,getRowsCols:De,getShapeAs3D:Te,getTextureShapeFromLogicalShape:Ne,isReshapeFree:_e,getWebGLMaxTextureSize:Oe,resetMaxTextureSize:function(){ie=null},resetMaxTexturesInShader:function(){se=null},getMaxTexturesInShader:Me,getWebGLDisjointQueryTimerVersion:Be,hasExtension:Pe,isWebGLVersionEnabled:Le,isCapableOfRenderingToFloatTexture:We,isDownloadFloatTextureEnabled:Ue,isWebGLFenceEnabled:ze}),He=i();function qe(){i().set("PROD",!0)}function Ke(){i().set("DEBUG",!0)}function je(){i().set("DEPRECATION_WARNINGS_ENABLED",!1),console.warn("TensorFlow.js deprecation warnings have been disabled.")}function Xe(t){i().getBool("DEPRECATION_WARNINGS_ENABLED")&&console.warn(t+" You can disable deprecation warnings with tf.disableDeprecationWarnings().")}function Ye(){Lt.disposeVariables()}function $e(){return Lt}function Qe(){return Lt.memory()}function Je(t){return Lt.profile(t)}function Ze(t,e){return Lt.tidy(t,e)}function tn(t){_t(t).forEach((function(t){return t.dispose()}))}function en(t){return Lt.keep(t)}function nn(t){return Lt.time(t)}function rn(t){return Lt.setBackend(t)}function on(){return Lt.ready()}function an(){return Lt.backendName}function sn(t){Lt.removeBackend(t)}function un(t){return Lt.findBackend(t)}function cn(t){return Lt.findBackendFactory(t)}function ln(t,e,n){return void 0===n&&(n=1),Lt.registerBackend(t,e,n)}function hn(){return Lt.backend}function fn(t,e){i().setPlatform(t,e)}function dn(){for(var t=[],e=0;e<arguments.length;e++)t[e]=arguments[e];i().getBool("IS_TEST")||console.warn.apply(console,t)}function pn(t,e){var n=t;if(V(t))return"string"===e?[]:[t.length];if(!Array.isArray(t))return[];for(var r=[];Array.isArray(n)||V(n)&&"string"!==e;)r.push(n.length),n=n[0];return Array.isArray(t)&&i().getBool("TENSORLIKE_CHECK_SHAPE_CONSISTENCY")&&function t(e,n,r){if(r=r||[],!Array.isArray(e)&&!V(e))return void C(0===n.length,(function(){return"Element arr["+r.join("][")+"] is a primitive, but should be an array/TypedArray of "+n[0]+" elements"}));C(n.length>0,(function(){return"Element arr["+r.join("][")+"] should be a primitive, but is an array of "+e.length+" elements"})),C(e.length===n[0],(function(){return"Element arr["+r.join("][")+"] should have "+n[0]+" elements, but has "+e.length+" elements"}));for(var o=n.slice(1),a=0;a<e.length;++a)t(e[a],o,r.concat(a))}(t,r,[]),r}function vn(t,e,n,r){if(null!=t&&("numeric"!==t&&t!==e||"numeric"===t&&"string"===e))throw new Error("Argument '"+n+"' passed to '"+r+"' must be "+t+" tensor, but got "+e+" tensor")}function mn(t,e,n,r){if(void 0===r&&(r="numeric"),t instanceof wt)return vn(r,t.dtype,e,n),t;var o=j(t);if("string"!==o&&["bool","int32","float32"].indexOf(r)>=0&&(o=r),vn(r,o,e,n),null==t||!V(t)&&!Array.isArray(t)&&"number"!=typeof t&&"boolean"!=typeof t&&"string"!=typeof t){var a=null==t?"null":t.constructor.name;throw new Error("Argument '"+e+"' passed to '"+n+"' must be a Tensor or TensorLike, but got '"+a+"'")}var s=pn(t,o);V(t)||Array.isArray(t)||(t=[t]);var u="string"!==o?Q(t,o,i().getBool("DEBUG")):I(t,[],!0);return Lt.makeTensor(u,s,o)}function gn(t,e,n,r){if(void 0===r&&(r="numeric"),!Array.isArray(t))throw new Error("Argument "+e+" passed to "+n+" must be a `Tensor[]` or `TensorLike[]`");return t.map((function(t,r){return mn(t,e+"["+r+"]",n)}),r)}function yn(t,e){for(var n=0;n<t.length;++n)if(t[t.length-n-1]!==e-1-n)return!1;return!0}function xn(t,e,n){for(var r=t.length+e.length,o=[],a=0,i=0,s=0;s<r;s++)-1===n.indexOf(s)?o.push(t[a++]):o.push(e[i++]);return o}function bn(t,e){for(var n=[],r=t.length,o=0;o<r;o++)-1===e.indexOf(o)&&n.push(t[o]);return[n,e.map((function(e){return t[e]}))]}function wn(t,e){return xn(t,e.map((function(t){return 1})),e)}function Cn(t,e,n){C(yn(e,n),(function(){return t+" supports only inner-most axes for now. Got axes "+e+" and rank-"+n+" input."}))}function En(t,e){if(yn(t,e))return null;for(var n=[],r=0;r<e;++r)-1===t.indexOf(r)&&n.push(r);return t.forEach((function(t){return n.push(t)})),n}function Rn(t){return t.map((function(t,e){return[e,t]})).sort((function(t,e){return t[1]-e[1]})).map((function(t){return t[0]}))}function In(t,e){for(var n=[],r=e-t;r<e;++r)n.push(r);return n}function kn(t,e){var n=t[0].length;t.forEach((function(t,e){C(t.length===n,(function(){return"Error in concat"+n+"D: rank of tensors["+e+"] must be the same as the rank of the rest ("+n+")"}))})),C(e>=0&&e<n,(function(){return"Error in concat"+n+"D: axis must be between 0 and "+(n-1)+"."}));var r=t[0];t.forEach((function(t,o){for(var a=0;a<n;a++)C(a===e||t[a]===r[a],(function(){return"Error in concat"+n+"D: Shape of tensors["+o+"] ("+t+") does not match the shape of the rest ("+r+") along the non-concatenated axis "+o+"."}))}))}function Sn(t,e){for(var n=t[0].slice(),r=1;r<t.length;r++)n[e]+=t[r][e];return n}function An(t){var e=Object.keys(t);if(1!==e.length)throw new Error("Please provide an object with a single key (operation name) mapping to a function. Got an object with "+e.length+" keys.");var n=e[0],r=t[n];n.endsWith("_")&&(n=n.substring(0,n.length-1));var o=function(){for(var t=[],e=0;e<arguments.length;e++)t[e]=arguments[e];Lt.startScope(n);try{var o=r.apply(void 0,t);return o instanceof Promise&&console.error("Cannot return a Promise inside of tidy."),Lt.endScope(o),o}catch(t){throw Lt.endScope(null),t}};return Object.defineProperty(o,"name",{value:n,configurable:!0}),o}He.registerFlag("HAS_WEBGL",(function(){return He.getNumber("WEBGL_VERSION")>0})),He.registerFlag("WEBGL_VERSION",(function(){return Le(2)?2:Le(1)?1:0})),He.registerFlag("WEBGL_BUFFER_SUPPORTED",(function(){return 2===He.get("WEBGL_VERSION")})),He.registerFlag("WEBGL_CPU_FORWARD",(function(){return!0})),He.registerFlag("WEBGL_FORCE_F16_TEXTURES",(function(){return!1})),He.registerFlag("WEBGL_PACK",(function(){return He.getBool("HAS_WEBGL")})),He.registerFlag("WEBGL_PACK_NORMALIZATION",(function(){return He.getBool("WEBGL_PACK")})),He.registerFlag("WEBGL_PACK_CLIP",(function(){return He.getBool("WEBGL_PACK")})),He.registerFlag("WEBGL_PACK_DEPTHWISECONV",(function(){return!1})),He.registerFlag("WEBGL_PACK_BINARY_OPERATIONS",(function(){return He.getBool("WEBGL_PACK")})),He.registerFlag("WEBGL_PACK_UNARY_OPERATIONS",(function(){return He.getBool("WEBGL_PACK")})),He.registerFlag("WEBGL_PACK_ARRAY_OPERATIONS",(function(){return He.getBool("WEBGL_PACK")})),He.registerFlag("WEBGL_PACK_IMAGE_OPERATIONS",(function(){return He.getBool("WEBGL_PACK")})),He.registerFlag("WEBGL_PACK_REDUCE",(function(){return He.getBool("WEBGL_PACK")})),He.registerFlag("WEBGL_LAZILY_UNPACK",(function(){return He.getBool("WEBGL_PACK")})),He.registerFlag("WEBGL_CONV_IM2COL",(function(){return He.getBool("WEBGL_PACK")})),He.registerFlag("WEBGL_MAX_TEXTURE_SIZE",(function(){return Oe(He.getNumber("WEBGL_VERSION"))})),He.registerFlag("WEBGL_MAX_TEXTURES_IN_SHADER",(function(){return Me(He.getNumber("WEBGL_VERSION"))})),He.registerFlag("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION",(function(){var t=He.getNumber("WEBGL_VERSION");return 0===t?0:Be(t)})),He.registerFlag("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_RELIABLE",(function(){return He.getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION")>0&&(t=navigator.userAgent||navigator.vendor||window.opera,!(/(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows ce|xda|xiino/i.test(t)||/1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-/i.test(t.substr(0,4))));var t})),He.registerFlag("WEBGL_RENDER_FLOAT32_CAPABLE",(function(){return We(He.getNumber("WEBGL_VERSION"))})),He.registerFlag("WEBGL_RENDER_FLOAT32_ENABLED",(function(){return!He.getBool("WEBGL_FORCE_F16_TEXTURES")&&He.getBool("WEBGL_RENDER_FLOAT32_CAPABLE")})),He.registerFlag("WEBGL_DOWNLOAD_FLOAT_ENABLED",(function(){return Ue(He.getNumber("WEBGL_VERSION"))})),He.registerFlag("WEBGL_FENCE_API_ENABLED",(function(){return ze(He.getNumber("WEBGL_VERSION"))})),He.registerFlag("WEBGL_SIZE_UPLOAD_UNIFORM",(function(){return He.getBool("WEBGL_RENDER_FLOAT32_ENABLED")?4:0})),bt=Xe;var Dn=An({complex_:function(t,e){var n=mn(t,"real","complex"),r=mn(e,"imag","complex");return E(n.shape,r.shape,"real and imag shapes, "+n.shape+" and "+r.shape+", must match in call to tf.complex()."),Lt.runKernelFunc((function(t){return t.complex(n,r)}),{$real:n,$imag:r})}}),Tn=An({real_:function(t){var e=mn(t,"input","real");return Lt.runKernelFunc((function(t){return t.real(e)}),{$input:e})}}),Nn=An({imag_:function(t){var e=mn(t,"input","imag");return Lt.runKernelFunc((function(t){return t.imag(e)}),{$input:e})}});function Fn(t,e,n){return _n(t,e,pn(t,n),n)}function _n(t,e,n,r){if(null==r&&(r=j(t)),"complex64"===r)throw new Error("Cannot construct a complex64 tensor directly. Please use tf.complex(real, imag).");if(!V(t)&&!Array.isArray(t)&&"number"!=typeof t&&"boolean"!=typeof t&&"string"!=typeof t)throw new Error("values passed to tensor(values) must be a number/boolean/string or an array of numbers/booleans/strings, or a TypedArray");if(null!=e){nt(e);var o=k(e),a=k(n);C(o===a,(function(){return"Based on the provided shape, ["+e+"], the tensor should have "+o+" values but has "+a}));for(var s=0;s<n.length;++s){var u=n[s],c=s!==n.length-1||u!==k(e.slice(s));C(n[s]===e[s]||!c,(function(){return"Error creating a new Tensor. Inferred shape ("+n+") does not match the provided shape ("+e+"). "}))}}return V(t)||Array.isArray(t)||(t=[t]),e=e||n,t="string"!==r?Q(t,r,i().getBool("DEBUG")):I(t,[],!0),Lt.makeTensor(t,e,r)}function On(t,e){if((V(t)&&"string"!==e||Array.isArray(t))&&"complex64"!==e)throw new Error("Error creating a new Scalar: value must be a primitive (number|boolean|string)");if("string"===e&&V(t)&&!(t instanceof Uint8Array))throw new Error("When making a scalar from encoded string, the value must be `Uint8Array`.");return _n(t,[],[],e)}function Mn(t,e){R(t);var n=pn(t,e);if(1!==n.length)throw new Error("tensor1d() requires values to be a flat/TypedArray");return _n(t,null,n,e)}function Bn(t,e,n){if(R(t),null!=e&&2!==e.length)throw new Error("tensor2d() requires shape to have two numbers");var r=pn(t,n);if(2!==r.length&&1!==r.length)throw new Error("tensor2d() requires values to be number[][] or flat/TypedArray");if(1===r.length&&null==e)throw new Error("tensor2d() requires shape to be provided when `values` are a flat/TypedArray");return _n(t,e,r,n)}function Pn(t,e,n){if(R(t),null!=e&&3!==e.length)throw new Error("tensor3d() requires shape to have three numbers");var r=pn(t,n);if(3!==r.length&&1!==r.length)throw new Error("tensor3d() requires values to be number[][][] or flat/TypedArray");if(1===r.length&&null==e)throw new Error("tensor3d() requires shape to be provided when `values` are a flat array");return _n(t,e,r,n)}function Ln(t,e,n){if(R(t),null!=e&&4!==e.length)throw new Error("tensor4d() requires shape to have four numbers");var r=pn(t,n);if(4!==r.length&&1!==r.length)throw new Error("tensor4d() requires values to be number[][][][] or flat/TypedArray");if(1===r.length&&null==e)throw new Error("tensor4d() requires shape to be provided when `values` are a flat array");return _n(t,e,r,n)}function Wn(t,e,n){if(R(t),null!=e&&5!==e.length)throw new Error("tensor5d() requires shape to have five numbers");var r=pn(t,n);if(5!==r.length&&1!==r.length)throw new Error("tensor5d() requires values to be number[][][][][] or flat/TypedArray");if(1===r.length&&null==e)throw new Error("tensor5d() requires shape to be provided when `values` are a flat array");return _n(t,e,r,n)}function Un(t,e,n){if(R(t),null!=e&&6!==e.length)throw new Error("tensor6d() requires shape to have six numbers");var r=pn(t,n);if(6!==r.length&&1!==r.length)throw new Error("tensor6d() requires values to be number[][][][][][] or flat/TypedArray");if(1===r.length&&null==e)throw new Error("tensor6d() requires shape to be provided when `values` are a flat array");return _n(t,e=e||r,r,n)}function Vn(t,e,n,r){return void 0===e&&(e=!0),Lt.makeVariable(t,e,n,r)}function zn(t,e){if(void 0===e&&(e="float32"),"complex64"===e){var n=zn(t,"float32"),r=Gn(t,"float32");return Dn(n,r)}var o=Z(k(t),e);return Lt.makeTensor(o,t,e)}function Gn(t,e){if(void 0===e&&(e="float32"),"complex64"===e){var n=Gn(t,"float32"),r=Gn(t,"float32");return Dn(n,r)}var o=tt(k(t),e);return Lt.makeTensor(o,t,e)}function Hn(t,e,n){return Lt.runKernelFunc((function(r){return r.fill(t,e,n)}),{})}function qn(t,e,n){if(n<=0)throw new Error("The number of values should be positive.");return Lt.runKernelFunc((function(r){return r.linspace(t,e,n)}),{})}function Kn(t,e,n,r){if(void 0===n&&(n=1),void 0===r&&(r="float32"),0===n)throw new Error("Cannot have a step of zero");if(t===e||t<e&&n<0||e<t&&n>1)return Gn([0],r);var o=tt(Math.abs(Math.ceil((e-t)/n)),r);e<t&&1===n&&(n=-1),o[0]=t;for(var a=1;a<o.length;a++)o[a]=o[a-1]+n;return Mn(o,r)}var jn=An({onesLike_:function(t){var e=mn(t,"x","onesLike");if("complex64"===e.dtype){var n=jn(Tn(e)),r=Xn(Nn(e));return Dn(n,r)}return Lt.runKernelFunc((function(t){return t.onesLike(e)}),{$x:e},(function(t,e){return{$x:function(){return Xn(t)}}}))}}),Xn=An({zerosLike_:function(t){var e=mn(t,"x","zerosLike");return Lt.runKernelFunc((function(t){return t.zerosLike(e)}),{$x:e},(function(t,e){return{$x:function(){return Xn(t)}}}))}});var Yn=An({concat_:function(t,e){void 0===e&&(e=0),C(t.length>=1,(function(){return"Pass at least one tensor to concat"}));var n=gn(t,"tensors","concat");"complex64"===n[0].dtype&&n.forEach((function(t){if("complex64"!==t.dtype)throw new Error("Cannot concatenate complex64 tensors with a tensor\n with dtype "+t.dtype+". ")})),e=O(e,n[0].shape)[0];var r=Sn(n.map((function(t){return t.shape})),e);if(0===k(r))return Fn([],r);if(1===(n=n.filter((function(t){return t.size>0}))).length)return n[0];var o=n.map((function(t){return t.shape}));kn(o,e);var a=n,i={axis:e};return Lt.runKernelFunc((function(t){return t.concat(n,e)}),a,(function(t){var n=o.map((function(t){return t[e]}));return tr(t,n,e).map((function(t){return function(){return t}}))}),"Concat",i)}}),$n=An({concat1d_:function(t){return Yn(t,0)}}),Qn=An({concat2d_:function(t,e){return Yn(t,e)}}),Jn=An({concat3d_:function(t,e){return Yn(t,e)}}),Zn=An({concat4d_:function(t,e){return Yn(t,e)}}),tr=An({split_:function(t,e,n){void 0===n&&(n=0);var r,o=mn(t,"x","split");return n=O(n,o.shape)[0],"number"==typeof e?(C(o.shape[n]%e==0,(function(){return"Number of splits must evenly divide the axis."})),r=new Array(e).fill(o.shape[n]/e)):(C(o.shape[n]===e.reduce((function(t,e){return t+e})),(function(){return"The sum of sizes must match the size of the axis dimension."})),r=e),Lt.runKernelFunc((function(t){return t.split(o,r,n)}),{$x:o},(function(t){return{$x:function(){return Yn(t,n)}}}))}});"undefined"!=typeof globalThis?globalThis:"undefined"!=typeof window?window:"undefined"!=typeof global?global:"undefined"!=typeof self&&self;function er(t,e){return t(e={exports:{}},e.exports),e.exports}var nr=er((function(t){!function(t,e,n){function r(t){var e,n=this,r=(e=4022871197,function(t){t=t.toString();for(var n=0;n<t.length;n++){var r=.02519603282416938*(e+=t.charCodeAt(n));r-=e=r>>>0,e=(r*=e)>>>0,e+=4294967296*(r-=e)}return 2.3283064365386963e-10*(e>>>0)});n.next=function(){var t=2091639*n.s0+2.3283064365386963e-10*n.c;return n.s0=n.s1,n.s1=n.s2,n.s2=t-(n.c=0|t)},n.c=1,n.s0=r(" "),n.s1=r(" "),n.s2=r(" "),n.s0-=r(t),n.s0<0&&(n.s0+=1),n.s1-=r(t),n.s1<0&&(n.s1+=1),n.s2-=r(t),n.s2<0&&(n.s2+=1),r=null}function o(t,e){return e.c=t.c,e.s0=t.s0,e.s1=t.s1,e.s2=t.s2,e}function a(t,e){var n=new r(t),a=e&&e.state,i=n.next;return i.int32=function(){return 4294967296*n.next()|0},i.double=function(){return i()+11102230246251565e-32*(2097152*i()|0)},i.quick=i,a&&("object"==typeof a&&o(a,n),i.state=function(){return o(n,{})}),i}e&&e.exports?e.exports=a:n&&n.amd?n((function(){return a})):this.alea=a}(0,t,!1)})),rr=er((function(t){!function(t,e,n){function r(t){var e=this,n="";e.x=0,e.y=0,e.z=0,e.w=0,e.next=function(){var t=e.x^e.x<<11;return e.x=e.y,e.y=e.z,e.z=e.w,e.w^=e.w>>>19^t^t>>>8},t===(0|t)?e.x=t:n+=t;for(var r=0;r<n.length+64;r++)e.x^=0|n.charCodeAt(r),e.next()}function o(t,e){return e.x=t.x,e.y=t.y,e.z=t.z,e.w=t.w,e}function a(t,e){var n=new r(t),a=e&&e.state,i=function(){return(n.next()>>>0)/4294967296};return i.double=function(){do{var t=((n.next()>>>11)+(n.next()>>>0)/4294967296)/(1<<21)}while(0===t);return t},i.int32=n.next,i.quick=i,a&&("object"==typeof a&&o(a,n),i.state=function(){return o(n,{})}),i}e&&e.exports?e.exports=a:n&&n.amd?n((function(){return a})):this.xor128=a}(0,t,!1)})),or=er((function(t){!function(t,e,n){function r(t){var e=this,n="";e.next=function(){var t=e.x^e.x>>>2;return e.x=e.y,e.y=e.z,e.z=e.w,e.w=e.v,(e.d=e.d+362437|0)+(e.v=e.v^e.v<<4^t^t<<1)|0},e.x=0,e.y=0,e.z=0,e.w=0,e.v=0,t===(0|t)?e.x=t:n+=t;for(var r=0;r<n.length+64;r++)e.x^=0|n.charCodeAt(r),r==n.length&&(e.d=e.x<<10^e.x>>>4),e.next()}function o(t,e){return e.x=t.x,e.y=t.y,e.z=t.z,e.w=t.w,e.v=t.v,e.d=t.d,e}function a(t,e){var n=new r(t),a=e&&e.state,i=function(){return(n.next()>>>0)/4294967296};return i.double=function(){do{var t=((n.next()>>>11)+(n.next()>>>0)/4294967296)/(1<<21)}while(0===t);return t},i.int32=n.next,i.quick=i,a&&("object"==typeof a&&o(a,n),i.state=function(){return o(n,{})}),i}e&&e.exports?e.exports=a:n&&n.amd?n((function(){return a})):this.xorwow=a}(0,t,!1)})),ar=er((function(t){!function(t,e,n){function r(t){var e=this;e.next=function(){var t,n,r=e.x,o=e.i;return t=r[o],n=(t^=t>>>7)^t<<24,n^=(t=r[o+1&7])^t>>>10,n^=(t=r[o+3&7])^t>>>3,n^=(t=r[o+4&7])^t<<7,t=r[o+7&7],n^=(t^=t<<13)^t<<9,r[o]=n,e.i=o+1&7,n},function(t,e){var n,r=[];if(e===(0|e))r[0]=e;else for(e=""+e,n=0;n<e.length;++n)r[7&n]=r[7&n]<<15^e.charCodeAt(n)+r[n+1&7]<<13;for(;r.length<8;)r.push(0);for(n=0;n<8&&0===r[n];++n);for(8==n?r[7]=-1:r[n],t.x=r,t.i=0,n=256;n>0;--n)t.next()}(e,t)}function o(t,e){return e.x=t.x.slice(),e.i=t.i,e}function a(t,e){null==t&&(t=+new Date);var n=new r(t),a=e&&e.state,i=function(){return(n.next()>>>0)/4294967296};return i.double=function(){do{var t=((n.next()>>>11)+(n.next()>>>0)/4294967296)/(1<<21)}while(0===t);return t},i.int32=n.next,i.quick=i,a&&(a.x&&o(a,n),i.state=function(){return o(n,{})}),i}e&&e.exports?e.exports=a:n&&n.amd?n((function(){return a})):this.xorshift7=a}(0,t,!1)})),ir=er((function(t){!function(t,e,n){function r(t){var e=this;e.next=function(){var t,n,r=e.w,o=e.X,a=e.i;return e.w=r=r+1640531527|0,n=o[a+34&127],t=o[a=a+1&127],n^=n<<13,t^=t<<17,n^=n>>>15,t^=t>>>12,n=o[a]=n^t,e.i=a,n+(r^r>>>16)|0},function(t,e){var n,r,o,a,i,s=[],u=128;for(e===(0|e)?(r=e,e=null):(e+="\0",r=0,u=Math.max(u,e.length)),o=0,a=-32;a<u;++a)e&&(r^=e.charCodeAt((a+32)%e.length)),0===a&&(i=r),r^=r<<10,r^=r>>>15,r^=r<<4,r^=r>>>13,a>=0&&(i=i+1640531527|0,o=0==(n=s[127&a]^=r+i)?o+1:0);for(o>=128&&(s[127&(e&&e.length||0)]=-1),o=127,a=512;a>0;--a)r=s[o+34&127],n=s[o=o+1&127],r^=r<<13,n^=n<<17,r^=r>>>15,n^=n>>>12,s[o]=r^n;t.w=i,t.X=s,t.i=o}(e,t)}function o(t,e){return e.i=t.i,e.w=t.w,e.X=t.X.slice(),e}function a(t,e){null==t&&(t=+new Date);var n=new r(t),a=e&&e.state,i=function(){return(n.next()>>>0)/4294967296};return i.double=function(){do{var t=((n.next()>>>11)+(n.next()>>>0)/4294967296)/(1<<21)}while(0===t);return t},i.int32=n.next,i.quick=i,a&&(a.X&&o(a,n),i.state=function(){return o(n,{})}),i}e&&e.exports?e.exports=a:n&&n.amd?n((function(){return a})):this.xor4096=a}(0,t,!1)})),sr=er((function(t){!function(t,e,n){function r(t){var e=this,n="";e.next=function(){var t=e.b,n=e.c,r=e.d,o=e.a;return t=t<<25^t>>>7^n,n=n-r|0,r=r<<24^r>>>8^o,o=o-t|0,e.b=t=t<<20^t>>>12^n,e.c=n=n-r|0,e.d=r<<16^n>>>16^o,e.a=o-t|0},e.a=0,e.b=0,e.c=-1640531527,e.d=1367130551,t===Math.floor(t)?(e.a=t/4294967296|0,e.b=0|t):n+=t;for(var r=0;r<n.length+20;r++)e.b^=0|n.charCodeAt(r),e.next()}function o(t,e){return e.a=t.a,e.b=t.b,e.c=t.c,e.d=t.d,e}function a(t,e){var n=new r(t),a=e&&e.state,i=function(){return(n.next()>>>0)/4294967296};return i.double=function(){do{var t=((n.next()>>>11)+(n.next()>>>0)/4294967296)/(1<<21)}while(0===t);return t},i.int32=n.next,i.quick=i,a&&("object"==typeof a&&o(a,n),i.state=function(){return o(n,{})}),i}e&&e.exports?e.exports=a:n&&n.amd?n((function(){return a})):this.tychei=a}(0,t,!1)})),ur=er((function(t){!function(e,n){var r,o=this,a=256,i=6,s="random",u=n.pow(a,i),c=n.pow(2,52),l=2*c,h=a-1;function f(t,h,f){var g=[],y=v(function t(e,n){var r,o=[],a=typeof e;if(n&&"object"==a)for(r in e)try{o.push(t(e[r],n-1))}catch(t){}return o.length?o:"string"==a?e:e+"\0"}((h=1==h?{entropy:!0}:h||{}).entropy?[t,m(e)]:null==t?function(){try{var t;return r&&(t=r.randomBytes)?t=t(a):(t=new Uint8Array(a),(o.crypto||o.msCrypto).getRandomValues(t)),m(t)}catch(t){var n=o.navigator,i=n&&n.plugins;return[+new Date,o,i,o.screen,m(e)]}}():t,3),g),x=new d(g),b=function(){for(var t=x.g(i),e=u,n=0;t<c;)t=(t+n)*a,e*=a,n=x.g(1);for(;t>=l;)t/=2,e/=2,n>>>=1;return(t+n)/e};return b.int32=function(){return 0|x.g(4)},b.quick=function(){return x.g(4)/4294967296},b.double=b,v(m(x.S),e),(h.pass||f||function(t,e,r,o){return o&&(o.S&&p(o,x),t.state=function(){return p(x,{})}),r?(n[s]=t,e):t})(b,y,"global"in h?h.global:this==n,h.state)}function d(t){var e,n=t.length,r=this,o=0,i=r.i=r.j=0,s=r.S=[];for(n||(t=[n++]);o<a;)s[o]=o++;for(o=0;o<a;o++)s[o]=s[i=h&i+t[o%n]+(e=s[o])],s[i]=e;(r.g=function(t){for(var e,n=0,o=r.i,i=r.j,s=r.S;t--;)e=s[o=h&o+1],n=n*a+s[h&(s[o]=s[i=h&i+e])+(s[i]=e)];return r.i=o,r.j=i,n})(a)}function p(t,e){return e.i=t.i,e.j=t.j,e.S=t.S.slice(),e}function v(t,e){for(var n,r=t+"",o=0;o<r.length;)e[h&o]=h&(n^=19*e[h&o])+r.charCodeAt(o++);return m(e)}function m(t){return String.fromCharCode.apply(0,t)}if(n["seed"+s]=f,v(n.random(),e),t.exports){t.exports=f;try{r=require("crypto")}catch(t){}}}([],Math)}));ur.alea=nr,ur.xor128=rr,ur.xorwow=or,ur.xorshift7=ar,ur.xor4096=ir,ur.tychei=sr;var cr=ur.alea,lr=function(){function t(t,e,n,r,o){this.mean=t,this.stdDev=e,this.dtype=n,this.nextVal=NaN,this.truncated=r,this.truncated&&(this.upper=this.mean+2*this.stdDev,this.lower=this.mean-2*this.stdDev);var a=o||Math.random();this.random=cr(a.toString())}return t.prototype.nextValue=function(){if(!isNaN(this.nextVal)){var t=this.nextVal;return this.nextVal=NaN,t}for(var e,n,r=!1;!r;){var o=void 0,a=void 0,i=void 0;do{i=(o=2*this.random()-1)*o+(a=2*this.random()-1)*a}while(i>=1||0===i);var s=Math.sqrt(-2*Math.log(i)/i);e=this.mean+this.stdDev*o*s,n=this.mean+this.stdDev*a*s,this.truncated&&!this.isValidTruncated(e)||(r=!0)}return this.truncated&&!this.isValidTruncated(n)||(this.nextVal=this.convertValue(n)),this.convertValue(e)},t.prototype.convertValue=function(t){return null==this.dtype||"float32"===this.dtype?t:Math.round(t)},t.prototype.isValidTruncated=function(t){return t<=this.upper&&t>=this.lower},t}(),hr=function(){function t(t,e,n,r){this.alpha=t,this.beta=1/e,this.dtype=n;var o=r||Math.random();this.randu=cr(o.toString()),this.randn=new lr(0,1,n,!1,this.randu()),this.d=t<1?t+2/3:t-1/3,this.c=1/Math.sqrt(9*this.d)}return t.prototype.nextValue=function(){for(var t,e,n,r,o,a;;){do{r=this.randn.nextValue(),a=1+this.c*r}while(a<=0);if(a*=a*a,e=1-.331*(t=r*r)*t,n=.5*t+this.d*(1-a+Math.log(a)),(o=this.randu())<e||Math.log(o)<n)break}return a=1/this.beta*this.d*a,this.alpha<1&&(a*=Math.pow(this.randu(),1/this.alpha)),this.convertValue(a)},t.prototype.convertValue=function(t){return"float32"===this.dtype?t:Math.round(t)},t}(),fr=function(){function t(t,e,n,r){var o=this;if(void 0===t&&(t=0),void 0===e&&(e=1),this.canReturnFloat=function(){return null==o.dtype||"float32"===o.dtype},this.min=t,this.range=e-t,this.dtype=n,null==r&&(r=Math.random()),"number"==typeof r&&(r=r.toString()),!this.canReturnFloat()&&this.range<=1)throw new Error("The difference between "+t+" - "+e+" <= 1 and dtype is not float");this.random=cr(r)}return t.prototype.convertValue=function(t){return this.canReturnFloat()?t:Math.round(t)},t.prototype.nextValue=function(){return this.convertValue(this.min+this.range*this.random())},t}();function dr(t,e,n){return void 0===e&&(e="float32"),e=e||"float32",nt(t),new gt(t,e,n)}function pr(t,e){void 0===e&&(e=!1),console.log(t.toString(e))}var vr=An({batchToSpaceND_:function(t,e,n){var r=mn(t,"x","batchToSpaceND"),o=e.reduce((function(t,e){return t*e}));return C(r.rank>=1+e.length,(function(){return"input rank is "+r.rank+" but should be > than blockShape.length "+e.length})),C(n.length===e.length,(function(){return"crops.length is "+n.length+" but should be equal to blockShape.length "+e.length})),C(r.shape[0]%o==0,(function(){return"input tensor batch is "+r.shape[0]+" but is not divisible by the product of the elements of blockShape "+e.join(" * ")+" === "+o})),Lt.runKernelFunc((function(t){return t.batchToSpaceND(r,e,n)}),{$x:r},(function(t){return{$x:function(){return t.spaceToBatchND(e,n)}}}))}}),mr=An({broadcastTo_:function(t,e){var n=mn(t,"broadcastTo","x"),r=n.shape;if(e.some((function(t){return!(t>0)||t%1!=0})))throw new Error("broadcastTo(): Invalid broadcast shape ["+e+"].");if(e.length<n.rank)throw new Error("broadcastTo(): shape.length="+e.length+" < input.rank="+n.rank+".");if(e.length>n.rank){for(var o=n.shape.slice();o.length<e.length;)o.unshift(1);n=n.reshape(o)}for(var a=Array.from(e),i=e.length-1;i>=0;i--)if(n.shape[i]===e[i])a[i]=1;else if(1!==n.shape[i])throw new Error("broadcastTo(): ["+r+"] cannot be broadcast to ["+e+"].");var s=a.map((function(t,e){return t>1?e:-1})).filter((function(t){return t>=0}));return 0===s.length?n.clone():Lt.runKernelFunc((function(t){return t.tile(n,a)}),{input:n},(function(t){return{input:function(){return t.sum(s,!0)}}}))}}),gr=An({cast_:function(t,e){var n=mn(t,"x","cast");if(!W(e))throw new Error("Failed to cast to unknown dtype "+e);if("string"===e&&"string"!==n.dtype||"string"!==e&&"string"===n.dtype)throw new Error("Only strings can be casted to strings");var r={dtype:e};return Lt.runKernelFunc((function(t){return t.cast(n,e)}),{x:n},(function(t){return{x:function(){return t.clone()}}}),"Cast",r)}}),yr=An({clone_:function(t){var e=mn(t,"x","clone",null);return Lt.runKernelFunc((function(){return Lt.makeTensorFromDataId(e.dataId,e.shape,e.dtype)}),{$x:e},(function(t){return{$x:function(){return t.toFloat()}}}))}}),xr=An({cumsum_:function(t,e,n,r){void 0===e&&(e=0),void 0===n&&(n=!1),void 0===r&&(r=!1);var o=mn(t,"x","cumsum"),a=En([e|=0],o.rank),i=o;null!=a&&(i=o.transpose(a));var s=In(1,o.rank)[0],u=Lt.runKernelFunc((function(t){return t.cumsum(i,s,n,r)}),{permutedX:i},(function(t){return{permutedX:function(){return t.cumsum(e,n,!r)}}}));return null!=a&&(u=u.transpose(a)),u}}),br=An({depthToSpace_:function(t,e,n){void 0===n&&(n="NHWC");var r=mn(t,"x","depthToSpace"),o="NHWC"===n?r.shape[1]:r.shape[2],a="NHWC"===n?r.shape[2]:r.shape[3],i="NHWC"===n?r.shape[3]:r.shape[1];return C(o*e>=0,(function(){return"Negative dimension size caused by overflow when multiplying\n "+o+" and "+e+" for depthToSpace with input shape\n "+r.shape})),C(a*e>=0,(function(){return"Negative dimension size caused by overflow when multiplying\n "+a+" and "+e+" for depthToSpace with input shape\n "+r.shape})),C(i%(e*e)==0,(function(){return"Dimension size must be evenly divisible by "+e*e+" but is "+i+" for depthToSpace with input shape "+r.shape})),Lt.runKernelFunc((function(t){return t.depthToSpace(r,e,n)}),{$x:r})}}),wr=An({expandDims_:function(t,e){void 0===e&&(e=0);var n=mn(t,"x","expandDims",null);C(e<=n.rank,(function(){return"Axis must be <= rank of the tensor"}));var r=n.shape.slice();return e<0&&(C(-(n.rank+1)<=e,(function(){return"Axis must be in the interval ["+-(n.rank+1)+", "+n.rank+"]"})),e=n.rank+e+1),r.splice(e,0,1),Or(n,r)}}),Cr=An({eye_:function(t,e,n,r){void 0===r&&(r="float32"),null==e&&(e=t);for(var o=dr([t,e],r),a=t<=e?t:e,i=0;i<a;++i)o.set(1,i,i);var s=o.toTensor().as2D(t,e);if(null==n)return s;if(1===n.length)return Lr(wr(s,0),[n[0],1,1]);if(2===n.length)return Lr(wr(wr(s,0),0),[n[0],n[1],1,1]);if(3===n.length)return Lr(wr(wr(wr(s,0),0),0),[n[0],n[1],n[2],1,1]);throw new Error("eye() currently supports only 1D and 2D batchShapes, but received "+n.length+"D.")}}),Er=An({multinomial_:function(t,e,n,r){void 0===r&&(r=!1);var o=mn(t,"logits","multinomial"),a=o.size,i=o.rank;if(a<2)throw new Error("Error in multinomial: you need at least 2 outcomes, but got "+a+".");if(i>2)throw new Error("Rank of probabilities must be 1 or 2, but is "+i);n=n||Math.random();var s=1===i?o.as2D(1,-1):o,u=Lt.runKernelFunc((function(t){return t.multinomial(s,r,e,n)}),{logits2D:s});return 1===i?u.as1D():u}}),Rr=An({oneHot_:function(t,e,n,r){if(void 0===n&&(n=1),void 0===r&&(r=0),e<2)throw new Error("Error in oneHot: depth must be >=2, but it is "+e);var o=mn(t,"indices","oneHot","int32"),a=o.shape.concat([e]);return o=o.flatten(),Lt.runKernelFunc((function(t){return t.oneHot(o,e,n,r)}),{$indices:o},(function(t){return{$indices:function(){return Gn(o.shape,"float32")}}})).reshape(a)}}),Ir=An({pad_:function(t,e,n){void 0===n&&(n=0);var r=mn(t,"x","pad");if(0===r.rank)throw new Error("pad(scalar) is not defined. Pass non-scalar to pad");var o={paddings:e,constantValue:n};return Lt.runKernelFunc((function(t){return t.pad(r,e,n)}),{x:r},(function(t){var n=e.map((function(t){return t[0]}));return{x:function(){return t.slice(n,r.shape)}}}),"PadV2",o)}}),kr=An({pad1d_:function(t,e,n){return void 0===n&&(n=0),C(2===e.length,(function(){return"Invalid number of paddings. Must be length of 2."})),Ir(t,[e],n)}}),Sr=An({pad2d_:function(t,e,n){return void 0===n&&(n=0),C(2===e.length&&2===e[0].length&&2===e[1].length,(function(){return"Invalid number of paddings. Must be length of 2 each."})),Ir(t,e,n)}}),Ar=An({pad3d_:function(t,e,n){return void 0===n&&(n=0),C(3===e.length&&2===e[0].length&&2===e[1].length&&2===e[2].length,(function(){return"Invalid number of paddings. Must be length of 2 each."})),Ir(t,e,n)}}),Dr=An({pad4d_:function(t,e,n){return void 0===n&&(n=0),C(4===e.length&&2===e[0].length&&2===e[1].length&&2===e[2].length&&2===e[3].length,(function(){return"Invalid number of paddings. Must be length of 2 each."})),Ir(t,e,n)}}),Tr=An({rand_:function(t,e,n){var r=k(t),o=null;if(null==n||"float32"===n)o=new Float32Array(r);else if("int32"===n)o=new Int32Array(r);else{if("bool"!==n)throw new Error("Unknown data type "+n);o=new Uint8Array(r)}for(var a=0;a<r;a++)o[a]=e();return Lt.makeTensor(o,t,n)}}),Nr=An({randomNormal_:function(t,e,n,r,o){if(void 0===e&&(e=0),void 0===n&&(n=1),null!=r&&"bool"===r)throw new Error("Unsupported data type "+r);for(var a=new lr(e,n,r,!1,o),i=dr(t,r),s=0;s<i.values.length;s++)i.values[s]=a.nextValue();return i.toTensor()}}),Fr=An({randomGamma_:function(t,e,n,r,o){if(void 0===n&&(n=1),void 0===r&&(r="float32"),null==n&&(n=1),null==r&&(r="float32"),"float32"!==r&&"int32"!==r)throw new Error("Unsupported data type "+r);for(var a=new hr(e,n,r,o),i=dr(t,r),s=0;s<i.values.length;s++)i.values[s]=a.nextValue();return i.toTensor()}}),_r=An({randomUniform_:function(t,e,n,r,o){void 0===e&&(e=0),void 0===n&&(n=1),void 0===r&&(r="float32");for(var a=dr(t,r),i=new fr(e,n,null,o),s=0;s<a.values.length;s++)a.values[s]=i.nextValue();return a.toTensor()}}),Or=An({reshape_:function(t,e){var n=mn(t,"x","reshape",null);e=_(e,n.size),C(n.size===k(e),(function(){return"new shape and old shape must have the same number of elements."}));var r={shape:e};return Lt.runKernelFunc((function(t){return t.reshape(n,e)}),{x:n},(function(t){return{x:function(){return t.reshape(n.shape)}}}),"Reshape",r)}}),Mr=An({spaceToBatchND_:function(t,e,n){var r=mn(t,"x","spaceToBatchND");return C(r.rank>=1+e.length,(function(){return"input rank "+r.rank+" should be > than [blockShape] "+e.length})),C(n.length===e.length,(function(){return"paddings.shape[0] "+n.length+" must be equal to [blockShape] "+e.length})),C(r.shape.reduce((function(t,r,o){return o>0&&o<=e.length?t&&(r+n[o-1][0]+n[o-1][1])%e[o-1]==0:t}),!0),(function(){return"input spatial dimensions "+r.shape.slice(1)+" with paddings "+n.toString()+" must be divisible by blockShapes "+e.toString()})),Lt.runKernelFunc((function(t){return t.spaceToBatchND(r,e,n)}),{$x:r},(function(t){return{$x:function(){return t.batchToSpaceND(e,n)}}}))}}),Br=An({squeeze_:function(t,e){var n=mn(t,"x","squeeze");return Or(n,M(n.shape,e).newShape)}}),Pr=An({stack_:function(t,e){void 0===e&&(e=0);var n=gn(t,"tensors","stack");if(C(n.length>=1,(function(){return"Pass at least one tensor to tf.stack"})),1===n.length)return n[0].expandDims(e);var r=n[0].rank,o=n[0].shape,a=n[0].dtype;C(e<=r,(function(){return"Axis must be <= rank of the tensor"})),n.forEach((function(t){E(o,t.shape,"All tensors passed to stack must have matching shapes")})),n.forEach((function(t){C(a===t.dtype,(function(){return"All tensors passed to stack must have matching dtypes"}))}));var i=n.map((function(t){return t.expandDims(e)}));return Yn(i,e)}}),Lr=An({tile_:function(t,e){var n=mn(t,"x","tile",null);C(n.rank===e.length,(function(){return"Error in transpose: rank of input "+n.rank+" must match length of reps "+e+"."}));var r=[n],o={reps:e};return Lt.runKernelFunc((function(t,r){var o=t.tile(n,e);return r([n]),o}),{x:n},(function(t,n){var r=n[0];return{x:function(){var n=Xn(r);if(1===r.rank)for(var o=0;o<e[0];++o)n=n.add(t.slice([o*r.shape[0]],[r.shape[0]]));else if(2===r.rank)for(o=0;o<e[0];++o)for(var a=0;a<e[1];++a)n=n.add(t.slice([o*r.shape[0],a*r.shape[1]],[r.shape[0],r.shape[1]]));else if(3===r.rank)for(o=0;o<e[0];++o)for(a=0;a<e[1];++a)for(var i=0;i<e[2];++i)n=n.add(t.slice([o*r.shape[0],a*r.shape[1],i*r.shape[2]],[r.shape[0],r.shape[1],r.shape[2]]));else{if(4!==r.rank)throw new Error("Gradient for tile operation is not implemented for rank-"+r.rank+" tensors yet.");for(o=0;o<e[0];++o)for(a=0;a<e[1];++a)for(i=0;i<e[2];++i)for(var s=0;s<e[3];++s)n=n.add(t.slice([o*r.shape[0],a*r.shape[1],i*r.shape[2],s*r.shape[3]],[r.shape[0],r.shape[1],r.shape[2],r.shape[3]]))}return n}}}),"Tile",o,r)}}),Wr=An({truncatedNormal_:function(t,e,n,r,o){if(void 0===e&&(e=0),void 0===n&&(n=1),null!=r&&"bool"===r)throw new Error("Unsupported data type "+r);for(var a=new lr(e,n,r,!0,o),i=dr(t,r),s=0;s<i.values.length;s++)i.values[s]=a.nextValue();return i.toTensor()}}),Ur=An({unstack_:function(t,e){void 0===e&&(e=0),e=e||0;var n=mn(t,"x","unstack");C(e>=-n.shape.length&&e<n.shape.length,(function(){return"Axis = "+e+" is not in [-"+n.shape.length+", "+n.shape.length+")"})),e<0&&(e+=n.shape.length);var r={axis:e};return Lt.runKernelFunc((function(t){return t.unstack(n,e)}),{x:n},(function(t){return{x:function(){return Pr(t,e)}}}),"Unpack",r)}}),Vr=function(t,e){return n(this,void 0,void 0,(function(){var n,o,a,i,s,u,c,l,h,f;return r(this,(function(r){switch(r.label){case 0:return n=mn(t,"x","setdiff1d"),o=mn(e,"y","setdiff1d"),C(n.dtype===o.dtype,(function(){return"x and y should have the same dtype, but got x ("+n.dtype+") and y ("+o.dtype+")."})),C(1===n.rank,(function(){return"x should be 1D tensor, but got x ("+n.shape+")."})),C(1===o.rank,(function(){return"y should be 1D tensor, but got y ("+o.shape+")."})),[4,n.data()];case 1:return a=r.sent(),[4,o.data()];case 2:for(i=r.sent(),s=new Set(i),u=0,h=0;h<a.length;h++)s.has(a[h])||u++;for(c=new gt([u],n.dtype),l=new gt([u],"int32"),h=0,f=0;h<a.length;h++)s.has(a[h])||(c.values[f]=a[h],l.values[f]=h,f++);return[2,[c.toTensor(),l.toTensor()]]}}))}))};function zr(t,e,n,r){void 0===r&&(r=!0);var o=[];if(r)(o=o.concat(e.slice(0))).push(t[0]/n),o=o.concat(t.slice(1));else{o=o.concat(t[0]);for(var a=e.length,i=0;i<a;++i)o=o.concat([t[i+1]/e[i],e[i]]);o=o.concat(t.slice(a+1))}return o}function Gr(t,e,n){void 0===n&&(n=!0);var r=[];if(n){r.push(e);for(var o=e+1;o<t;++o)o<=2*e?(r.push(o),r.push(o-(e+1))):r.push(o)}else{var a=[],i=[];for(o=1;o<t;++o)o>=2*e+1||o%2==1?i.push(o):a.push(o);r.push.apply(r,a),r.push(0),r.push.apply(r,i)}return r}function Hr(t,e,n,r){void 0===r&&(r=!0);var o=[];r?o.push(t[0]/n):o.push(t[0]*n);for(var a=1;a<t.length;++a)a<=e.length?r?o.push(e[a-1]*t[a]):o.push(t[a]/e[a-1]):o.push(t[a]);return o}function qr(t,e){for(var n=[0],r=0;r<e;++r)n.push(t[r][0]);return n}function Kr(t,e,n){for(var r=t.slice(0,1),o=0;o<n;++o)r.push(t[o+1]-e[o][0]-e[o][1]);return r}function jr(t,e){if(t.rank<1)throw new Error("tf.gatherND() expects the input to be rank 1 or higher, but the rank was "+t.rank+".");if(e.rank<1)throw new Error("tf.gatherND() expects the indices to be rank 1 or higher, but the rank was "+e.rank+".");if("int32"!==e.dtype)throw new Error("tf.gatherND() expects the indices to be int32 type, but the dtype was "+e.dtype+".");if(e.shape[e.rank-1]>t.rank)throw new Error("index innermost dimension length must be <= tensor rank; saw: "+e.shape[e.rank-1]+" vs. "+t.rank);if(0===t.size)throw new Error("Requested more than 0 entries, but input is empty. Input shape: "+t.shape+".");for(var n=e.shape,r=n[n.length-1],o=1,a=0;a<n.length-1;++a)o*=n[a];var i=t.shape,s=n.slice();s.pop();var u=1;for(a=r;a<t.rank;++a)u*=i[a],s.push(i[a]);var c=$(t.shape).map((function(t){return t/u})).concat([1]).slice(0,r);return[s,o,u,c]}var Xr=Object.freeze({prepareAndValidate:jr}),Yr=30;function $r(t){return t<=Yr?t:Y(t,Math.floor(Math.sqrt(t)))}function Qr(t,e,n){var r=e.rank>1?e.shape[e.rank-1]:1,o=e.rank>1?e.rank-1:1,a="Must have updates.shape = indices.shape[:batchDim] + shape[sliceDim:], got updates.shape: "+n.shape+", indices.shape: "+e.shape+", shape: "+t+", sliceDim: "+r+", and batchDim: "+o+".";if(n.rank<o)throw new Error(a+" update.rank < "+o+". ");if(t.length<r+(n.rank-o))throw new Error(a+" Output shape length < "+(r+(n.rank-o)));if(n.rank!==o+t.length-r)throw new Error(a+" update.rank != "+(o+t.length-r));for(var i=0;i<o;++i)if(n.shape[i]!==e.shape[i])throw new Error(a+" updates.shape["+i+"] ("+n.shape[i]+") != indices.shape["+i+"] ("+e.shape[i]+").");for(i=0;i<n.rank-o;++i)if(n.shape[i+o]!==t[i+r])throw new Error(a+" updates.shape["+(i+o)+"] ("+n.shape[i+o]+") != shape["+(i+o)+"] ("+t[i+o]+")")}function Jr(t,e,n){if(e.rank<1)throw new Error("tf.scatterND() expects the indices to be rank 1 or higher, but the rank was "+e.rank+".");if(t.rank<1)throw new Error("tf.scatterND() expects the updates to be rank 1 or higher, but the rank was "+t.rank+".");if("int32"!==e.dtype)throw new Error("The dtype of 'indices' should be int32, but got dtype: "+e.dtype);if(n.length<1)throw new Error("Output rank must be greater or equal to 1, but got shape: "+n);if(0===n.length){if(0===e.size)throw new Error("Indices specified for empty output. indices shape: "+e.shape);if(0===t.size)throw new Error("Updates specified for empty output. updates shape: "+t.shape)}Qr(n,e,t)}function Zr(t,e,n){for(var r=e.shape.length,o=r>1?e.shape[r-1]:1,a=n.length,i=1,s=o;s<a;++s)i*=n[s];var u=o<1?1:o;return{sliceRank:o,numUpdates:k(e.shape)/u,sliceSize:i,strides:$(n.slice(0,o)).concat([1]),outputSize:k(n)}}var to=Object.freeze({validateUpdateShape:Qr,validateInput:Jr,calculateShapes:Zr});function eo(t,e,n){C(t.rank===e.length,(function(){return"Error in slice"+t.rank+"D: Length of begin "+e+" must match the rank of the array ("+t.rank+")."})),C(t.rank===n.length,(function(){return"Error in slice"+t.rank+"D: Length of size "+n+" must match the rank of the array ("+t.rank+")."}));for(var r=function(r){C(e[r]+n[r]<=t.shape[r],(function(){return"Error in slice"+t.rank+"D: begin["+r+"] + size["+r+"] ("+(e[r]+n[r])+") would overflow input.shape["+r+"] ("+t.shape[r]+")"}))},o=0;o<t.rank;++o)r(o)}function no(t){for(var e=[],n=0;t>0;)1&t&&e.push(n),t/=2,n++;return e}function ro(t,e,n){for(var r=[],o=0;o<t.length;o++)r[o]=Math.ceil((e[o]-t[o])/n[o]);return r}function oo(t,e,n,r,o){var a=e[o],i=n[o]||1;(t&1<<o||null==a)&&(a=i>0?Number.MIN_SAFE_INTEGER:Number.MAX_SAFE_INTEGER);var s=r[o];return a<0&&(a+=s),a=x(0,a,s-1)}function ao(t,e,n,r,o){var a=e[o],i=n[o]||1;(t&1<<o||null==a)&&(a=i>0?Number.MAX_SAFE_INTEGER:Number.MIN_SAFE_INTEGER);var s=r[o];return a<0&&(a+=s),a=i>0?x(0,a,s):x(-1,a,s-1)}function io(t,e,n){for(var r=n.length,o=0;o<n.length;o++)if(n[o]>1){r=o;break}for(o=r+1;o<n.length;o++)if(e[o]>0||n[o]!==t[o])return!1;return!0}function so(t,e){for(var n=t.length>0?t[t.length-1]:1,r=0;r<t.length-1;r++)n+=t[r]*e[r];return n}var uo=Object.freeze({assertParamsValid:eo,maskToAxes:no,computeOutShape:ro,startForAxis:oo,stopForAxis:ao,isSliceContinous:io,computeFlatOffset:so});function co(t){return C(X(t),(function(){return"The f passed in grad(f) must be a function"})),function(e,n){var r=mn(e,"x","tf.grad",null),o=null!=n?mn(n,"dy","tf.grad"):null;return Lt.tidy((function(){var e=Lt.gradients((function(){return t(r)}),[r],o),n=e.value,a=e.grads;return null!=o&&E(n.shape,o.shape,"The shape of dy passed in grad(f)(x, dy) must match the shape returned by f(x)"),mo(a),a[0]}))}}function lo(t){return C(X(t),(function(){return"The f passed in grads(f) must be a function"})),function(e,n){C(Array.isArray(e),(function(){return"The args passed in grads(f)(args) must be an array of `Tensor`s or `TensorLike`s"}));var r=gn(e,"args","tf.grads",null),o=null!=n?mn(n,"dy","tf.grads"):null;return Lt.tidy((function(){var e=Lt.gradients((function(){return t.apply(void 0,r)}),r,o),n=e.value,a=e.grads;return null!=o&&E(n.shape,o.shape,"The shape of dy passed in grads(f)([x1,...], dy) must match the shape returned by f([x1,...])"),mo(a),a}))}}function ho(t){return C(X(t),(function(){return"The f passed in valueAndGrad(f) must be a function"})),function(e,n){C(e instanceof wt,(function(){return"The x passed in valueAndGrad(f)(x) must be a tensor"})),C(null==n||n instanceof wt,(function(){return"The dy passed in valueAndGrad(f)(x, dy) must be a tensor"}));var r=Lt.gradients((function(){return t(e)}),[e],n),o=r.grads,a=r.value;return mo(o),{grad:o[0],value:a}}}function fo(t){return C(X(t),(function(){return"The f passed in valueAndGrads(f) must be a function"})),function(e,n){C(Array.isArray(e)&&e.every((function(t){return t instanceof wt})),(function(){return"The args passed in valueAndGrads(f)(args) must be array of tensors"})),C(null==n||n instanceof wt,(function(){return"The dy passed in valueAndGrads(f)(args, dy) must be a tensor"}));var r=Lt.gradients((function(){return t.apply(void 0,e)}),e,n);return null!=n&&E(r.value.shape,n.shape,"The shape of dy passed in valueAndGrads(f)([x1,...], dy) must match the shape returned by f([x1,...])"),mo(r.grads),r}}function po(t,e){C(X(t),(function(){return"The f passed in variableGrads(f) must be a function"})),C(null==e||Array.isArray(e)&&e.every((function(t){return t instanceof St})),(function(){return"The varList passed in variableGrads(f, varList) must be an array of variables"}));var n=null!=e;if(!n)for(var r in e=[],Lt.registeredVariables)e.push(Lt.registeredVariables[r]);var o=n?e.filter((function(t){return!t.trainable})):null,a=e.length;C((e=e.filter((function(t){return t.trainable}))).length>0,(function(){return"variableGrads() expects at least one of the input variables to be trainable, but none of the "+a+" variables is trainable."}));var i=Lt.gradients(t,e,null,!0),s=i.value,u=i.grads;C(u.some((function(t){return null!=t})),(function(){return"Cannot find a connection between any variable and the result of the loss function y=f(x). Please make sure the operations that use variables are inside the function f passed to minimize()."})),C(0===s.rank,(function(){return"The f passed in variableGrads(f) must return a scalar, but it returned a rank-"+s.rank+" tensor"}));var c={};return e.forEach((function(t,e){null!=u[e]&&(c[t.name]=u[e])})),null!=o&&o.forEach((function(t){return c[t.name]=null})),{value:s,grads:c}}function vo(t){return Lt.customGrad(t)}function mo(t){if(t.filter((function(t){return null==t})).length>0)throw new Error("Cannot compute gradient of y=f(x) with respect to x. Make sure that\n the f you passed encloses all operations that lead from x to y.")}var go=An({softmax_:function(t,e){void 0===e&&(e=-1);var n=mn(t,"logits","softmax","float32");if(-1===e&&(e=n.rank-1),e!==n.rank-1)throw Error("Softmax along a non-last dimension is not yet supported. Logits was rank "+n.rank+" and dim was "+e);return Lt.runKernelFunc((function(t,r){var o=t.softmax(n,e);return r([o]),o}),{logits:n},(function(t,n){var r=n[0],o=t.mul(r);return{logits:function(){return o.sub(o.sum([e],!0).mul(r))}}}),"Softmax",{dim:e},[],[!0])}}),yo=An({logSoftmax_:function(t,e){void 0===e&&(e=-1);var n=mn(t,"logits","logSoftmax");if(-1===e&&(e=n.rank-1),e!==n.rank-1)throw Error("Log Softmax along a non-last dimension is not yet supported. Logits was rank "+n.rank+" and axis was "+e);return vo((function(t,n){var r=t.max(e,!0),o=t.sub(r),a=o.toFloat().sub(o.exp().sum(e,!0).log());n([a]);return{value:a,gradFunc:function(t,n){var r=n[0].exp();return t.sub(t.sum(e,!0).mul(r))}}}))(n)}}),xo=function(){function t(t,e){this.backend=t,this.dataMover=e,this.data=new WeakMap,this.dataIdsCount=0}return t.prototype.get=function(t){return this.data.has(t)||this.dataMover.moveData(this.backend,t),this.data.get(t)},t.prototype.set=function(t,e){this.dataIdsCount++,this.data.set(t,e)},t.prototype.has=function(t){return this.data.has(t)},t.prototype.delete=function(t){return this.dataIdsCount--,this.data.delete(t)},t.prototype.numDataIds=function(){return this.dataIdsCount},t}(),bo=function(){function t(){}return t.prototype.time=function(t){return wo("time")},t.prototype.read=function(t){return wo("read")},t.prototype.readSync=function(t){return wo("readSync")},t.prototype.numDataIds=function(){return wo("numDataIds")},t.prototype.disposeData=function(t){return wo("disposeData")},t.prototype.write=function(t,e,n){return wo("write")},t.prototype.move=function(t,e,n,r){return wo("move")},t.prototype.memory=function(){return wo("memory")},t.prototype.floatPrecision=function(){return wo("floatPrecision")},t.prototype.epsilon=function(){return 32===this.floatPrecision()?1e-7:1e-4},t.prototype.batchMatMul=function(t,e,n,r){return wo("batchMatMul")},t.prototype.fusedBatchMatMul=function(t){t.a,t.b,t.transposeA,t.transposeB,t.bias,t.activation,t.preluActivationWeights;return wo("fusedBatchMatMul")},t.prototype.slice=function(t,e,n){return wo("slice")},t.prototype.stridedSlice=function(t,e,n,r){return wo("stridedSlice")},t.prototype.unstack=function(t,e){return wo("unstack")},t.prototype.reverse=function(t,e){return wo("reverse")},t.prototype.concat=function(t,e){return wo("concat")},t.prototype.neg=function(t){return wo("neg")},t.prototype.add=function(t,e){return wo("add")},t.prototype.addN=function(t){return wo("addN")},t.prototype.subtract=function(t,e){return wo("subtract")},t.prototype.multiply=function(t,e){return wo("multiply")},t.prototype.realDivide=function(t,e){return wo("realDivide")},t.prototype.floorDiv=function(t,e){return wo("floorDiv")},t.prototype.sum=function(t,e){return wo("sum")},t.prototype.prod=function(t,e){return wo("prod")},t.prototype.unsortedSegmentSum=function(t,e,n){return wo("unsortedSegmentSum")},t.prototype.argMin=function(t,e){return wo("argMin")},t.prototype.argMax=function(t,e){return wo("argMax")},t.prototype.equal=function(t,e){return wo("equal")},t.prototype.notEqual=function(t,e){return wo("notEqual")},t.prototype.less=function(t,e){return wo("less")},t.prototype.lessEqual=function(t,e){return wo("lessEqual")},t.prototype.greater=function(t,e){return wo("greater")},t.prototype.greaterEqual=function(t,e){return wo("greaterEqual")},t.prototype.logicalNot=function(t){return wo("logicalNot")},t.prototype.logicalAnd=function(t,e){return wo("logicalAnd")},t.prototype.logicalOr=function(t,e){return wo("logicalOr")},t.prototype.where=function(t){return wo("where")},t.prototype.select=function(t,e,n){return wo("select")},t.prototype.topk=function(t,e,n){return wo("topk")},t.prototype.min=function(t,e){return wo("min")},t.prototype.minimum=function(t,e){return wo("minimum")},t.prototype.mod=function(t,e){return wo("mod")},t.prototype.max=function(t,e){return wo("max")},t.prototype.maximum=function(t,e){return wo("maximum")},t.prototype.all=function(t,e){return wo("all")},t.prototype.any=function(t,e){return wo("any")},t.prototype.squaredDifference=function(t,e){return wo("squaredDifference")},t.prototype.ceil=function(t){return wo("ceil")},t.prototype.floor=function(t){return wo("floor")},t.prototype.round=function(t){return wo("round")},t.prototype.sign=function(t){return wo("sign")},t.prototype.isNaN=function(t){return wo("isNaN")},t.prototype.isInf=function(t){return wo("isInf")},t.prototype.isFinite=function(t){return wo("isFinite")},t.prototype.pow=function(t,e){return wo("pow")},t.prototype.exp=function(t){return wo("exp")},t.prototype.expm1=function(t){return wo("expm1")},t.prototype.softmax=function(t,e){return wo("softmax")},t.prototype.log=function(t){return wo("log")},t.prototype.log1p=function(t){return wo("log1p")},t.prototype.sqrt=function(t){return wo("sqrt")},t.prototype.rsqrt=function(t){return wo("rsqrt")},t.prototype.square=function(t){return wo("square")},t.prototype.reciprocal=function(t){return wo("reciprocal")},t.prototype.relu=function(t){return wo("relu")},t.prototype.relu6=function(t){return wo("relu6")},t.prototype.prelu=function(t,e){return wo("prelu")},t.prototype.elu=function(t){return wo("elu")},t.prototype.eluDer=function(t,e){return wo("eluDer")},t.prototype.selu=function(t){return wo("selu")},t.prototype.int=function(t){return wo("int")},t.prototype.clip=function(t,e,n){return wo("clip")},t.prototype.abs=function(t){return wo("abs")},t.prototype.complexAbs=function(t){return wo("complexAbs")},t.prototype.sigmoid=function(t){return wo("sigmoid")},t.prototype.softplus=function(t){return wo("softplus")},t.prototype.sin=function(t){return wo("sin")},t.prototype.cos=function(t){return wo("cos")},t.prototype.tan=function(t){return wo("tan")},t.prototype.asin=function(t){return wo("asin")},t.prototype.acos=function(t){return wo("acos")},t.prototype.atan=function(t){return wo("atan")},t.prototype.atan2=function(t,e){return wo("atan2")},t.prototype.sinh=function(t){return wo("sinh")},t.prototype.cosh=function(t){return wo("cosh")},t.prototype.tanh=function(t){return wo("tanh")},t.prototype.asinh=function(t){return wo("asinh")},t.prototype.acosh=function(t){return wo("acosh")},t.prototype.atanh=function(t){return wo("atanh")},t.prototype.erf=function(t){return wo("erf")},t.prototype.step=function(t,e){return wo("step")},t.prototype.fusedConv2d=function(t){t.input,t.filter,t.convInfo,t.bias,t.activation,t.preluActivationWeights;return wo("fusedConv2d")},t.prototype.conv2d=function(t,e,n){return wo("conv2d")},t.prototype.conv2dDerInput=function(t,e,n){return wo("conv2dDerInput")},t.prototype.conv2dDerFilter=function(t,e,n){return wo("conv2dDerFilter")},t.prototype.fusedDepthwiseConv2D=function(t){t.input,t.filter,t.convInfo,t.bias,t.activation,t.preluActivationWeights;return wo("fusedDepthwiseConv2D")},t.prototype.depthwiseConv2D=function(t,e,n){return wo("depthwiseConv2D")},t.prototype.depthwiseConv2DDerInput=function(t,e,n){return wo("depthwiseConv2DDerInput")},t.prototype.depthwiseConv2DDerFilter=function(t,e,n){return wo("depthwiseConv2DDerFilter")},t.prototype.conv3d=function(t,e,n){return wo("conv3d")},t.prototype.conv3dDerInput=function(t,e,n){return wo("conv3dDerInput")},t.prototype.conv3dDerFilter=function(t,e,n){return wo("conv3dDerFilter")},t.prototype.maxPool=function(t,e){return wo("maxPool")},t.prototype.maxPoolBackprop=function(t,e,n,r){return wo("maxPoolBackprop")},t.prototype.avgPool=function(t,e){return wo("avgPool")},t.prototype.avgPoolBackprop=function(t,e,n){return wo("avgPoolBackprop")},t.prototype.avgPool3d=function(t,e){return wo("avgPool3d")},t.prototype.avgPool3dBackprop=function(t,e,n){return wo("avgPool3dBackprop")},t.prototype.maxPool3d=function(t,e){return wo("maxPool3d")},t.prototype.maxPool3dBackprop=function(t,e,n,r){return wo("maxPool3dBackprop")},t.prototype.reshape=function(t,e){return wo("reshape")},t.prototype.cast=function(t,e){return wo("cast")},t.prototype.tile=function(t,e){return wo("tile")},t.prototype.pad=function(t,e,n){return wo("pad")},t.prototype.transpose=function(t,e){return wo("transpose")},t.prototype.gather=function(t,e,n){return wo("gather")},t.prototype.gatherND=function(t,e){return wo("gatherND")},t.prototype.scatterND=function(t,e,n){return wo("scatterND")},t.prototype.batchToSpaceND=function(t,e,n){return wo("batchToSpaceND")},t.prototype.spaceToBatchND=function(t,e,n){return wo("spaceToBatchND")},t.prototype.resizeBilinear=function(t,e,n,r){return wo("resizeBilinear")},t.prototype.resizeBilinearBackprop=function(t,e,n){return wo("resizeBilinearBackprop")},t.prototype.resizeNearestNeighbor=function(t,e,n,r){return wo("resizeNearestNeighbor")},t.prototype.resizeNearestNeighborBackprop=function(t,e,n){return wo("resizeNearestNeighborBackprop")},t.prototype.batchNormalization=function(t,e,n,r,o,a){return wo("batchNormalization")},t.prototype.localResponseNormalization4D=function(t,e,n,r,o){return wo("localResponseNormalization4D")},t.prototype.LRNGrad=function(t,e,n,r,o,a,i){return wo("LRNGrad")},t.prototype.multinomial=function(t,e,n,r){return wo("multinomial")},t.prototype.oneHot=function(t,e,n,r){return wo("oneHot")},t.prototype.cumsum=function(t,e,n,r){return wo("cumsum")},t.prototype.nonMaxSuppression=function(t,e,n,r,o){return wo("nonMaxSuppression")},t.prototype.fft=function(t){return wo("fft")},t.prototype.ifft=function(t){return wo("ifft")},t.prototype.complex=function(t,e){return wo("complex")},t.prototype.real=function(t){return wo("real")},t.prototype.imag=function(t){return wo("imag")},t.prototype.cropAndResize=function(t,e,n,r,o,a){return wo("cropAndResize")},t.prototype.depthToSpace=function(t,e,n){return wo("depthToSpace")},t.prototype.split=function(t,e,n){return wo("split")},t.prototype.sparseToDense=function(t,e,n,r){return wo("sparseToDense")},t.prototype.diag=function(t){return wo("diag")},t.prototype.fill=function(t,e,n){return wo("fill")},t.prototype.onesLike=function(t){return wo("onesLike")},t.prototype.zerosLike=function(t){return wo("zerosLike")},t.prototype.linspace=function(t,e,n){return wo("linspace")},t.prototype.dispose=function(){return wo("dispose")},t}();function wo(t){throw new Error("'"+t+"' not yet implemented or not found in the registry. Did you forget to import the kernel?")}function Co(t,e){for(var n=t.length,r=[],o=0;o<n;o++){var a=n-1-o,i=t[a]||1;(e[e.length-1-o]||1)>1&&1===i&&r.unshift(a)}return r}function Eo(t,e){for(var n=[],r=0;r<e.length;r++){var o=t[t.length-r-1],a=e.length-r-1,i=e[a];(null==o||1===o&&i>1)&&n.unshift(a)}return n}function Ro(t,e){for(var n=[],r=Math.max(t.length,e.length),o=0;o<r;o++){var a=t[t.length-o-1];null==a&&(a=1);var i=e[e.length-o-1];if(null==i&&(i=1),1===a)n.unshift(i);else if(1===i)n.unshift(a);else{if(a!==i)throw Error("Operands could not be broadcast together with shapes "+t+" and "+e+".");n.unshift(a)}}return n}function Io(t,e,n,r,o,a,i){void 0===i&&(i="channelsLast");var s,u=To(e),c=u[0],l=u[1];if("channelsLast"===i)s=[c,l,t[3],t[3]];else{if("channelsFirst"!==i)throw new Error("Unknown dataFormat "+i);s=[c,l,t[1],t[1]]}return So(t,s,n,r,o,a,!1,i)}function ko(t,e,n,r,o,a,i){void 0===i&&(i="NDHWC");var s,u,c=No(e),l=c[0],h=c[1],f=c[2];if("NDHWC"===i)u="channelsLast",s=[l,h,f,t[4],t[4]];else{if("NCDHW"!==i)throw new Error("Unknown dataFormat "+i);u="channelsFirst",s=[l,h,f,t[1],t[1]]}return Ao(t,s,n,r,o,!1,u,a)}function So(t,e,n,r,o,a,i,s){void 0===i&&(i=!1),void 0===s&&(s="channelsLast");var u=[-1,-1,-1,-1],c=u[0],l=u[1],h=u[2],f=u[3];if("channelsLast"===s)c=t[0],l=t[1],h=t[2],f=t[3];else{if("channelsFirst"!==s)throw new Error("Unknown dataFormat "+s);c=t[0],f=t[1],l=t[2],h=t[3]}var d,p=e[0],v=e[1],m=e[3],g=To(n),y=g[0],x=g[1],b=To(r),w=b[0],E=b[1],R=Fo(p,w),I=Fo(v,E),k=function(t,e,n,r,o,a,i,s){var u,c,l;if("number"==typeof t){u={top:t,bottom:t,left:t,right:t,type:0===t?"VALID":"NUMBER"};var h=function(t,e,n,r,o){null==r&&(r=Do(t,e,n));var a=t[0],i=t[1],s=_o((a-e+2*r)/n+1,o);C(A(s),(function(){return"The output # of rows ("+s+") must be an integer. Change the stride and/or zero pad parameters"}));var u=_o((i-e+2*r)/n+1,o);return C(A(u),(function(){return"The output # of columns ("+u+") must be an integer. Change the stride and/or zero pad parameters"})),[s,u]}([e,n],a,r,t,s);c=h[0],l=h[1]}else if("same"===t){c=Math.ceil(e/r),l=Math.ceil(n/o);var f=Math.max(0,(c-1)*r+a-e),d=Math.max(0,(l-1)*o+i-n),p=Math.floor(f/2),v=f-p,m=Math.floor(d/2);u={top:p,bottom:v,left:m,right:d-m,type:"SAME"}}else{if("valid"!==t)throw Error("Unknown padding parameter: "+t);u={top:0,bottom:0,left:0,right:0,type:"VALID"},c=Math.ceil((e-a+1)/r),l=Math.ceil((n-i+1)/o)}return{padInfo:u,outHeight:c,outWidth:l}}(o,l,h,y,x,R,I,a),S=k.padInfo,D=k.outHeight,T=k.outWidth,N=i?m*f:m;return"channelsFirst"===s?d=[c,N,D,T]:"channelsLast"===s&&(d=[c,D,T,N]),{batchSize:c,dataFormat:s,inHeight:l,inWidth:h,inChannels:f,outHeight:D,outWidth:T,outChannels:N,padInfo:S,strideHeight:y,strideWidth:x,filterHeight:p,filterWidth:v,effectiveFilterHeight:R,effectiveFilterWidth:I,dilationHeight:w,dilationWidth:E,inShape:t,outShape:d,filterShape:e}}function Ao(t,e,n,r,o,a,i,s){void 0===a&&(a=!1),void 0===i&&(i="channelsLast");var u=[-1,-1,-1,-1,-1],c=u[0],l=u[1],h=u[2],f=u[3],d=u[4];if("channelsLast"===i)c=t[0],l=t[1],h=t[2],f=t[3],d=t[4];else{if("channelsFirst"!==i)throw new Error("Unknown dataFormat "+i);c=t[0],d=t[1],l=t[2],h=t[3],f=t[4]}var p,v=e[0],m=e[1],g=e[2],y=e[4],x=No(n),b=x[0],w=x[1],E=x[2],R=No(r),I=R[0],k=R[1],S=R[2],D=Fo(v,I),T=Fo(m,k),N=Fo(g,S),F=function(t,e,n,r,o,a,i,s,u,c,l){var h,f,d,p;if("number"==typeof t){h={top:t,bottom:t,left:t,right:t,front:t,back:t,type:0===t?"VALID":"NUMBER"};var v=function(t,e,n,r,o,a){null==o&&(o=Do(t,e,r));var i=t[0],s=t[1],u=t[2],c=_o((i-e+2*o)/r+1,a);C(A(c),(function(){return"The output # of depths ("+c+") must be an integer. Change the stride and/or zero pad parameters"}));var l=_o((s-e+2*o)/r+1,a);C(A(l),(function(){return"The output # of rows ("+l+") must be an integer. Change the stride and/or zero pad parameters"}));var h=_o((u-e+2*o)/r+1,a);return C(A(h),(function(){return"The output # of columns ("+h+") must be an integer. Change the stride and/or zero pad parameters"})),[c,l,h,n]}([e,n,r,1],s,1,o,t,l);f=v[0],d=v[1],p=v[2]}else if("same"===t){f=Math.ceil(e/o),d=Math.ceil(n/a),p=Math.ceil(r/i);var m=(f-1)*o+s-e,g=(d-1)*a+u-n,y=(p-1)*i+c-r,x=Math.floor(m/2),b=m-x,w=Math.floor(g/2),E=g-w,R=Math.floor(y/2);h={top:w,bottom:E,left:R,right:y-R,front:x,back:b,type:"SAME"}}else{if("valid"!==t)throw Error("Unknown padding parameter: "+t);h={top:0,bottom:0,left:0,right:0,front:0,back:0,type:"VALID"},f=Math.ceil((e-s+1)/o),d=Math.ceil((n-u+1)/a),p=Math.ceil((r-c+1)/i)}return{padInfo:h,outDepth:f,outHeight:d,outWidth:p}}(o,l,h,f,b,w,E,D,T,N,s),_=F.padInfo,O=F.outDepth,M=F.outHeight,B=F.outWidth,P=a?y*d:y;return"channelsFirst"===i?p=[c,P,O,M,B]:"channelsLast"===i&&(p=[c,O,M,B,P]),{batchSize:c,dataFormat:i,inDepth:l,inHeight:h,inWidth:f,inChannels:d,outDepth:O,outHeight:M,outWidth:B,outChannels:P,padInfo:_,strideDepth:b,strideHeight:w,strideWidth:E,filterDepth:v,filterHeight:m,filterWidth:g,effectiveFilterDepth:D,effectiveFilterHeight:T,effectiveFilterWidth:N,dilationDepth:I,dilationHeight:k,dilationWidth:S,inShape:t,outShape:p,filterShape:e}}function Do(t,e,n,r){void 0===r&&(r=1);var o=Fo(e,r);return Math.floor((t[0]*(n-1)-n+o)/2)}function To(t){return"number"==typeof t?[t,t,t]:2===t.length?[t[0],t[1],1]:t}function No(t){return"number"==typeof t?[t,t,t]:t}function Fo(t,e){return e<=1?t:t+(t-1)*(e-1)}function _o(t,e){if(!e)return t;switch(e){case"round":return Math.round(t);case"ceil":return Math.ceil(t);case"floor":return Math.floor(t);default:throw new Error("Unknown roundingMode "+e)}}function Oo(t){var e=To(t),n=e[0],r=e[1],o=e[2];return 1===n&&1===r&&1===o}function Mo(t,e){return Oo(t)||Oo(e)}function Bo(t){if("NHWC"===t)return"channelsLast";if("NCHW"===t)return"channelsFirst";throw new Error("Unknown dataFormat "+t)}function Po(t,e,n){if("complex64"===e){if("complex64"===t.dtype)return t.clone();var r=Gn(t.shape),o=t.toFloat(),a=n.complex(o,r);return r.dispose(),o.dispose(),a}if(!U(t.dtype,e))return Lt.makeTensorFromDataId(t.dataId,t.shape,e);if("complex64"===t.dtype){var i=n.real(t);a=i.cast(e);return i.dispose(),a}if("int32"===e)return n.int(t);if("bool"===e){var s=On(0,t.dtype);a=n.notEqual(t,s);return s.dispose(),a}throw new Error("Error in Cast: failed to cast "+t.dtype+" to "+e)}function Lo(t,e){return Lt.makeTensorFromDataId(t.dataId,e,t.dtype)}function Wo(t,e,n){var r=(e-t)/(n-1),o=tt(n,"float32");o[0]=t;for(var a=1;a<o.length;a++)o[a]=o[a-1]+r;return Mn(o,"float32")}var Uo=Object.freeze({castTensor:Po,reshapeTensor:Lo,linspaceImpl:Wo,upcastType:Dt,axesAreInnerMostDims:yn,combineLocations:xn,computeOutAndReduceShapes:bn,expandShapeToKeepDim:wn,assertAxesAreInnerMostDims:Cn,getAxesPermutation:En,getUndoAxesPermutation:Rn,getInnerMostAxes:In,getBroadcastDims:Co,getReductionAxes:Eo,assertAndGetBroadcastShape:Ro,assertParamsConsistent:kn,computeOutShape:Sn,computePool2DInfo:Io,computePool3DInfo:ko,computeConv2DInfo:So,computeConv3DInfo:Ao,computeDefaultPad:Do,tupleValuesAreOne:Oo,eitherStridesOrDilationsAreOne:Mo,convertConv2DDataFormat:Bo,PARALLELIZE_THRESHOLD:Yr,computeOptimalWindowSize:$r});function Vo(t,e){if(t.length!==e.length)throw new Error("Cannot merge real and imag arrays of different lengths. real:"+t.length+", imag: "+e.length+".");for(var n=new Float32Array(2*t.length),r=0;r<n.length;r+=2)n[r]=t[r/2],n[r+1]=e[r/2];return n}function zo(t,e){return{real:t[2*e],imag:t[2*e+1]}}function Go(t,e,n,r){t[2*r]=e,t[2*r+1]=n}function Ho(t,e,n){var r=(n?2:-2)*Math.PI*(t/e);return{real:Math.cos(r),imag:Math.sin(r)}}function qo(t,e,n){var r=function(t,e,n){return function(t,e,n){var r=0,o=t.length,a=0,i=!1;for(;r<o;){var s=n(e,t[a=r+(o-r>>>1)]);s>0?r=a+1:(o=a,i=!s)}return i?r:-r-1}(t,e,n||Ko)}(t,e,n),o=r<0?-(r+1):r;t.splice(o,0,e)}function Ko(t,e){return t>e?1:t<e?-1:0}function jo(t,e,n,r,o){return Yo(t,e,n,r,o,0).selectedIndices}function Xo(t,e,n,r,o,a){var i=Yo(t,e,n,r,o,a,!0);return i.numValidOutputs.dispose(),{selectedIndices:i.selectedIndices,selectedScores:i.selectedScores}}function Yo(t,e,n,r,o,a,i,s){void 0===i&&(i=!1),void 0===s&&(s=!1);for(var u=Array.from(e).map((function(t,e){return{score:t,boxIndex:e,suppressBeginIndex:0}})).filter((function(t){return t.score>o})).sort(Jo),c=a>0?-.5/a:0,l=[],h=[];l.length<n&&u.length>0;){var f=u.pop(),d=f.score,p=f.boxIndex,v=f.suppressBeginIndex;if(d<o)break;for(var m=!1,g=l.length-1;g>=v;--g){var y=$o(t,p,l[g]);if(y>=r){m=!0;break}if(f.score=f.score*Qo(r,c,y),f.score<=o)break}f.suppressBeginIndex=l.length,m||(f.score===d?(l.push(p),h.push(f.score)):f.score>o&&qo(u,f,Jo))}var x=l.length;return s&&(l.fill(0,x),h.fill(0,x)),{selectedIndices:Mn(l,"int32"),selectedScores:Mn(h,"float32"),numValidOutputs:On(x,"int32")}}function $o(t,e,n){var r=t.subarray(4*e,4*e+4),o=t.subarray(4*n,4*n+4),a=Math.min(r[0],r[2]),i=Math.min(r[1],r[3]),s=Math.max(r[0],r[2]),u=Math.max(r[1],r[3]),c=Math.min(o[0],o[2]),l=Math.min(o[1],o[3]),h=Math.max(o[0],o[2]),f=Math.max(o[1],o[3]),d=(s-a)*(u-i),p=(h-c)*(f-l);if(d<=0||p<=0)return 0;var v=Math.max(a,c),m=Math.max(i,l),g=Math.min(s,h),y=Math.min(u,f),x=Math.max(g-v,0)*Math.max(y-m,0);return x/(d+p-x)}function Qo(t,e,n){var r=Math.exp(e*n*n);return n<=t?r:0}function Jo(t,e){return t.score-e.score||t.score===e.score&&e.boxIndex-t.boxIndex}function Zo(t,e,n){var r=new Array(t.rank).fill(0),o=t.shape.slice();return e.map((function(e){o[n]=e;var a=t.slice(r,o);return r[n]+=e,a}))}function ta(t,e){for(var n=new Array(t.rank),r=0;r<n.length;r++)n[r]=t.shape[r]*e[r];var o=dr(n,t.dtype);for(r=0;r<o.values.length;++r){for(var a=o.indexToLoc(r),i=new Array(t.rank),s=0;s<i.length;s++)i[s]=a[s]%t.shape[s];var u=t.locToIndex(i);o.values[r]=t.values[u]}return o.toTensor()}function ea(t,e,n,r,o){for(var a=e[e.length-1],i=[t.length/a,a],s=i[0],u=i[1],c=B(n,s*r),l=B("int32",s*r),h=0;h<s;h++){for(var f=h*u,d=t.subarray(f,f+u),p=[],v=0;v<d.length;v++)p.push({value:d[v],index:v});p.sort((function(t,e){return e.value-t.value}));var m=h*r,g=c.subarray(m,m+r),y=l.subarray(m,m+r);for(v=0;v<r;v++)g[v]=p[v].value,y[v]=p[v].index}var x=e.slice();return x[x.length-1]=r,[Fn(c,x,n),Fn(l,x,"int32")]}function na(t,e){for(var n=[],r=0;r<e.length;r++)e[r]&&n.push(r);var o=dr(t,"int32"),a=dr([n.length,t.length],"int32");for(r=0;r<n.length;r++){var i=o.indexToLoc(n[r]),s=r*t.length;a.values.set(i,s)}return a.toTensor()}var ra=function(t,e){this.outputShape=[],this.outputShape=t,this.variableNames=e.map((function(t,e){return"T"+e}));var n=[];this.variableNames.forEach((function(t){n.push("float v"+t+" = get"+t+"AtOutCoords();")}));var r=this.variableNames.map((function(t){return"v"+t})).join(" + ");this.userCode="\n void main() {\n "+n.join("\n ")+"\n\n float result = "+r+";\n setOutput(result);\n }\n "},oa=function(t,e){this.outputShape=[],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=t,this.variableNames=e.map((function(t,e){return"T"+e}));var n=[];this.variableNames.forEach((function(t){n.push("vec4 v"+t+" = get"+t+"AtOutCoords();")}));var r=this.variableNames.map((function(t){return"v"+t})).join(" + ");this.userCode="\n void main() {\n "+n.join("\n ")+"\n\n vec4 result = "+r+";\n setOutput(result);\n }\n "},aa=function(t,e,n){this.variableNames=["A"];var r=t.windowSize,o=t.batchSize,a=t.inSize,i=Math.ceil(a/r);n||this.variableNames.push("bestIndicesA"),this.outputShape=[o,i];var s="max"===e?">":"<",u=n?"inOffset + i;":"round(getBestIndicesA(batch, inOffset + i));";this.userCode="\n void main() {\n ivec2 coords = getOutputCoords();\n int batch = coords[0];\n int outIdx = coords[1];\n int inOffset = outIdx * "+r+";\n\n int bestIndex = inOffset;\n float bestValue = getA(batch, bestIndex);\n\n for (int i = 0; i < "+r+"; i++) {\n int inIdx = "+u+";\n float candidate = getA(batch, inIdx);\n if (candidate "+s+" bestValue) {\n bestValue = candidate;\n bestIndex = inIdx;\n }\n }\n setOutput(float(bestIndex));\n }\n "};function ia(t,e){return["x","y","z","w","u","v"].slice(0,e).map((function(e){return t+"."+e}))}function sa(t,e){return 1===e?[t]:ia(t,e)}function ua(){var t,e,n,r,o,a,s,u,c,l;return 2===i().getNumber("WEBGL_VERSION")?(t="#version 300 es",e="in",n="out",r="in",o="texture",a="outputColor",s="out vec4 outputColor;",u="\n bool isnan_custom(float val) {\n return (val > 0.0 || val < 0.0) ? false : val != 0.0;\n }\n\n bvec4 isnan_custom(vec4 val) {\n return bvec4(isnan_custom(val.x),\n isnan_custom(val.y), isnan_custom(val.z), isnan_custom(val.w));\n }\n\n #define isnan(value) isnan_custom(value)\n ",c="",l="\n #define round(value) newRound(value)\n int newRound(float value) {\n return int(floor(value + 0.5));\n }\n\n ivec4 newRound(vec4 value) {\n return ivec4(floor(value + vec4(0.5)));\n }\n "):(t="",e="attribute",n="varying",r="varying",o="texture2D",a="gl_FragColor",s="",u="\n #define isnan(value) isnan_custom(value)\n bool isnan_custom(float val) {\n return (val > 0. || val < 1. || val == 0.) ? false : true;\n }\n bvec4 isnan_custom(vec4 val) {\n return bvec4(isnan(val.x), isnan(val.y), isnan(val.z), isnan(val.w));\n }\n ",c="\n uniform float INFINITY;\n\n bool isinf(float val) {\n return abs(val) == INFINITY;\n }\n bvec4 isinf(vec4 val) {\n return equal(abs(val), vec4(INFINITY));\n }\n ",l="\n int round(float value) {\n return int(floor(value + 0.5));\n }\n\n ivec4 round(vec4 value) {\n return ivec4(floor(value + vec4(0.5)));\n }\n "),{version:t,attribute:e,varyingVs:n,varyingFs:r,texture2D:o,output:a,defineOutput:s,defineSpecialNaN:u,defineSpecialInf:c,defineRound:l}}function ca(t,e,n){void 0===n&&(n="index");var r=$(e);return r.map((function(e,o){return"int "+t[o]+" = "+n+" / "+e+"; "+(o===r.length-1?"int "+t[o+1]+" = "+n+" - "+t[o]+" * "+e:"index -= "+t[o]+" * "+e)+";"})).join("")}function la(t){var e=$(t).map((function(t){return t.toString()}));return"\n int getFlatIndex(ivec3 coords) {\n return coords.x * "+e[0]+" + coords.y * "+e[1]+" + coords.z;\n }\n"}var ha="\n const float FLOAT_MAX = 1.70141184e38;\n const float FLOAT_MIN = 1.17549435e-38;\n\n lowp vec4 encode_float(highp float v) {\n if (isnan(v)) {\n return vec4(255, 255, 255, 255);\n }\n\n highp float av = abs(v);\n\n if(av < FLOAT_MIN) {\n return vec4(0.0, 0.0, 0.0, 0.0);\n } else if(v > FLOAT_MAX) {\n return vec4(0.0, 0.0, 128.0, 127.0) / 255.0;\n } else if(v < -FLOAT_MAX) {\n return vec4(0.0, 0.0, 128.0, 255.0) / 255.0;\n }\n\n highp vec4 c = vec4(0,0,0,0);\n\n highp float e = floor(log2(av));\n highp float m = exp2(fract(log2(av))) - 1.0;\n\n c[2] = floor(128.0 * m);\n m -= c[2] / 128.0;\n c[1] = floor(32768.0 * m);\n m -= c[1] / 32768.0;\n c[0] = floor(8388608.0 * m);\n\n highp float ebias = e + 127.0;\n c[3] = floor(ebias / 2.0);\n ebias -= c[3] * 2.0;\n c[2] += floor(ebias) * 128.0;\n\n c[3] += 128.0 * step(0.0, -v);\n\n return c / 255.0;\n }\n";function fa(t,e,n,r){var o=[];t.forEach((function(t){var e=k(t.shapeInfo.logicalShape);t.shapeInfo.isUniform?o.push("uniform float "+t.name+(e>1?"["+e+"]":"")+";"):(o.push("uniform sampler2D "+t.name+";"),o.push("uniform int offset"+t.name+";"))}));var a,i,s=o.join("\n"),u=t.map((function(t){return function(t,e,n){void 0===n&&(n=!1);var r="";r+=n?pa(t):da(t);var o=t.shapeInfo.logicalShape,a=e.logicalShape;o.length<=a.length&&(r+=n?function(t,e){var n,r=t.name,o=r.charAt(0).toUpperCase()+r.slice(1),a="get"+o+"AtOutCoords",i=t.shapeInfo.logicalShape.length,s=e.logicalShape.length,u=Co(t.shapeInfo.logicalShape,e.logicalShape),c=wa(s),l=s-i,h=["x","y","z","w","u","v"];n=0===i?"":s<2&&u.length>=1?"coords = 0;":u.map((function(t){return"coords."+h[t+l]+" = 0;"})).join("\n");var f="";f=s<2&&i>0?"coords":t.shapeInfo.logicalShape.map((function(t,e){return"coords."+h[e+l]})).join(", ");var d="return outputValue;",p=1===k(t.shapeInfo.logicalShape),v=1===k(e.logicalShape);if(1!==i||p||v){if(p&&!v)d=1===s?"\n return vec4(outputValue.x, outputValue.x, 0., 0.);\n ":"\n return vec4(outputValue.x);\n ";else if(u.length){var m=i-2,g=i-1;u.indexOf(m)>-1&&u.indexOf(g)>-1?d="return vec4(outputValue.x);":u.indexOf(m)>-1?d="return vec4(outputValue.x, outputValue.y, outputValue.x, outputValue.y);":u.indexOf(g)>-1&&(d="return vec4(outputValue.xx, outputValue.zz);")}}else d="\n return vec4(outputValue.xy, outputValue.xy);\n ";return"\n vec4 "+a+"() {\n "+c+" coords = getOutputCoords();\n "+n+"\n vec4 outputValue = get"+o+"("+f+");\n "+d+"\n }\n "}(t,e):function(t,e){var n=t.name,r=n.charAt(0).toUpperCase()+n.slice(1),o="get"+r+"AtOutCoords",a=e.texShape,i=t.shapeInfo.texShape,s=t.shapeInfo.logicalShape.length,u=e.logicalShape.length;if(!t.shapeInfo.isUniform&&s===u&&null==t.shapeInfo.flatOffset&&S(i,a))return"\n float "+o+"() {\n return sampleTexture("+n+", resultUV);\n }\n ";var c,l=wa(u),h=Co(t.shapeInfo.logicalShape,e.logicalShape),f=u-s,d=["x","y","z","w","u","v"];c=0===s?"":u<2&&h.length>=1?"coords = 0;":h.map((function(t){return"coords."+d[t+f]+" = 0;"})).join("\n");var p="";p=u<2&&s>0?"coords":t.shapeInfo.logicalShape.map((function(t,e){return"coords."+d[e+f]})).join(", ");return"\n float "+o+"() {\n "+l+" coords = getOutputCoords();\n "+c+"\n return get"+r+"("+p+");\n }\n "}(t,e));return r}(t,e,r)})).join("\n"),c=e.texShape,l=ua(),h=function(t){return"\n float sampleTexture(sampler2D textureSampler, vec2 uv) {\n return "+t.texture2D+"(textureSampler, uv).r;\n }\n "}(l),f=function(t){return t.version+"\n precision highp float;\n precision highp int;\n precision highp sampler2D;\n "+t.varyingFs+" vec2 resultUV;\n "+t.defineOutput+"\n const vec2 halfCR = vec2(0.5, 0.5);\n\n struct ivec5\n {\n int x;\n int y;\n int z;\n int w;\n int u;\n };\n\n struct ivec6\n {\n int x;\n int y;\n int z;\n int w;\n int u;\n int v;\n };\n\n uniform float NAN;\n "+t.defineSpecialNaN+"\n "+t.defineSpecialInf+"\n "+t.defineRound+"\n\n int imod(int x, int y) {\n return x - y * (x / y);\n }\n\n int idiv(int a, int b, float sign) {\n int res = a / b;\n int mod = imod(a, b);\n if (sign < 0. && mod != 0) {\n res -= 1;\n }\n return res;\n }\n\n //Based on the work of Dave Hoskins\n //https://www.shadertoy.com/view/4djSRW\n #define HASHSCALE1 443.8975\n float random(float seed){\n vec2 p = resultUV * seed;\n vec3 p3 = fract(vec3(p.xyx) * HASHSCALE1);\n p3 += dot(p3, p3.yzx + 19.19);\n return fract((p3.x + p3.y) * p3.z);\n }\n\n "+va+"\n "+ma+"\n "+ga+"\n "}(l);return e.isPacked?(a=function(t,e){switch(t.length){case 0:return"\n int getOutputCoords() {\n return 0;\n }\n ";case 1:return function(t,e){var n=[Math.ceil(e[0]/2),Math.ceil(e[1]/2)];if(1===n[0])return"\n int getOutputCoords() {\n return 2 * int(resultUV.x * "+n[1]+".0);\n }\n ";if(1===n[1])return"\n int getOutputCoords() {\n return 2 * int(resultUV.y * "+n[0]+".0);\n }\n ";return"\n int getOutputCoords() {\n ivec2 resTexRC = ivec2(resultUV.yx *\n vec2("+n[0]+", "+n[1]+"));\n return 2 * (resTexRC.x * "+n[1]+" + resTexRC.y);\n }\n "}(0,e);case 2:return function(t,e){var n=[Math.ceil(e[0]/2),Math.ceil(e[1]/2)];if(S(t,e))return"\n ivec2 getOutputCoords() {\n return 2 * ivec2(resultUV.yx * vec2("+n[0]+", "+n[1]+"));\n }\n ";var r=Math.ceil(t[1]/2);return"\n ivec2 getOutputCoords() {\n ivec2 resTexRC = ivec2(resultUV.yx *\n vec2("+n[0]+", "+n[1]+"));\n\n int index = resTexRC.x * "+n[1]+" + resTexRC.y;\n int r = 2 * (index / "+r+");\n int c = imod(index, "+r+") * 2;\n\n return ivec2(r, c);\n }\n "}(t,e);case 3:return n=t,r=e,o=[Math.ceil(r[0]/2),Math.ceil(r[1]/2)],a=Math.ceil(n[2]/2),i=a*Math.ceil(n[1]/2),"\n ivec3 getOutputCoords() {\n ivec2 resTexRC = ivec2(resultUV.yx *\n vec2("+o[0]+", "+o[1]+"));\n int index = resTexRC.x * "+o[1]+" + resTexRC.y;\n\n int b = index / "+i+";\n index -= b * "+i+";\n\n int r = 2 * (index / "+a+");\n int c = imod(index, "+a+") * 2;\n\n return ivec3(b, r, c);\n }\n ";default:return function(t,e){for(var n=[Math.ceil(e[0]/2),Math.ceil(e[1]/2)],r=Math.ceil(t[t.length-1]/2),o=r*Math.ceil(t[t.length-2]/2),a=o,i="",s="b, r, c",u=2;u<t.length-1;u++)a*=t[t.length-u-1],i="\n int b"+u+" = index / "+a+";\n index -= b"+u+" * "+a+";\n "+i,s="b"+u+", "+s;return"\n ivec"+t.length+" getOutputCoords() {\n ivec2 resTexRC = ivec2(resultUV.yx *\n vec2("+n[0]+", "+n[1]+"));\n int index = resTexRC.x * "+n[1]+" + resTexRC.y;\n\n "+i+"\n\n int b = index / "+o+";\n index -= b * "+o+";\n\n int r = 2 * (index / "+r+");\n int c = imod(index, "+r+") * 2;\n\n return ivec"+t.length+"("+s+");\n }\n "}(t,e)}var n,r,o,a,i}(e.logicalShape,c),i=function(t){return"\n void setOutput(vec4 val) {\n "+t.output+" = val;\n }\n "}(l)):(a=function(t,e){switch(t.length){case 0:return"\n int getOutputCoords() {\n return 0;\n }\n ";case 1:return function(t,e){if(1===e[0])return"\n int getOutputCoords() {\n return int(resultUV.x * "+e[1]+".0);\n }\n ";if(1===e[1])return"\n int getOutputCoords() {\n return int(resultUV.y * "+e[0]+".0);\n }\n ";return"\n int getOutputCoords() {\n ivec2 resTexRC = ivec2(resultUV.yx *\n vec2("+e[0]+", "+e[1]+"));\n return resTexRC.x * "+e[1]+" + resTexRC.y;\n }\n "}(0,e);case 2:return function(t,e){if(S(t,e))return"\n ivec2 getOutputCoords() {\n return ivec2(resultUV.yx * vec2("+e[0]+", "+e[1]+"));\n }\n ";if(1===t[1])return"\n ivec2 getOutputCoords() {\n ivec2 resTexRC = ivec2(resultUV.yx *\n vec2("+e[0]+", "+e[1]+"));\n int index = resTexRC.x * "+e[1]+" + resTexRC.y;\n return ivec2(index, 0);\n }\n ";if(1===t[0])return"\n ivec2 getOutputCoords() {\n ivec2 resTexRC = ivec2(resultUV.yx *\n vec2("+e[0]+", "+e[1]+"));\n int index = resTexRC.x * "+e[1]+" + resTexRC.y;\n return ivec2(0, index);\n }\n ";return"\n ivec2 getOutputCoords() {\n ivec2 resTexRC = ivec2(resultUV.yx *\n vec2("+e[0]+", "+e[1]+"));\n int index = resTexRC.x * "+e[1]+" + resTexRC.y;\n int r = index / "+t[1]+";\n int c = index - r * "+t[1]+";\n return ivec2(r, c);\n }\n "}(t,e);case 3:return n=e,r=ca(["r","c","d"],t),"\n ivec3 getOutputCoords() {\n ivec2 resTexRC = ivec2(resultUV.yx *\n vec2("+n[0]+", "+n[1]+"));\n int index = resTexRC.x * "+n[1]+" + resTexRC.y;\n "+r+"\n return ivec3(r, c, d);\n }\n ";case 4:return function(t,e){var n=ca(["r","c","d","d2"],t);return"\n ivec4 getOutputCoords() {\n ivec2 resTexRC = ivec2(resultUV.yx *\n vec2("+e[0]+", "+e[1]+"));\n int index = resTexRC.x * "+e[1]+" + resTexRC.y;\n "+n+"\n return ivec4(r, c, d, d2);\n }\n "}(t,e);case 5:return function(t,e){var n=ca(["r","c","d","d2","d3"],t);return"\n ivec5 getOutputCoords() {\n ivec2 resTexRC = ivec2(resultUV.yx * vec2("+e[0]+",\n "+e[1]+"));\n\n int index = resTexRC.x * "+e[1]+" + resTexRC.y;\n\n "+n+"\n\n ivec5 outShape = ivec5(r, c, d, d2, d3);\n return outShape;\n }\n "}(t,e);case 6:return function(t,e){var n=ca(["r","c","d","d2","d3","d4"],t);return"\n ivec6 getOutputCoords() {\n ivec2 resTexRC = ivec2(resultUV.yx *\n vec2("+e[0]+", "+e[1]+"));\n int index = resTexRC.x * "+e[1]+" + resTexRC.y;\n\n "+n+"\n\n ivec6 result = ivec6(r, c, d, d2, d3, d4);\n return result;\n }\n "}(t,e);default:throw new Error(t.length+"-D output sampling is not yet supported")}var n,r}(e.logicalShape,c),i=function(t){return"\n void setOutput(float val) {\n "+t.output+" = vec4(val, 0, 0, 0);\n }\n "}(l)),r&&(f+=ya),[f,h,i,s,a,u,n].join("\n")}function da(t){var e=t.shapeInfo.logicalShape;switch(e.length){case 0:return function(t){var e=t.name,n="get"+e.charAt(0).toUpperCase()+e.slice(1);if(t.shapeInfo.isUniform)return"float "+n+"() {return "+e+";}";var r=t.shapeInfo.texShape,o=r[0],a=r[1];if(1===o&&1===a)return"\n float "+n+"() {\n return sampleTexture("+e+", halfCR);\n }\n ";var i=t.shapeInfo.texShape,s=i[0],u=i[1],c=xa(e);return"\n float "+n+"() {\n vec2 uv = uvFromFlat("+s+", "+u+", "+c+");\n return sampleTexture("+e+", uv);\n }\n "}(t);case 1:return function(t){var e=t.name,n="get"+e.charAt(0).toUpperCase()+e.slice(1);if(t.shapeInfo.isUniform)return"\n float "+n+"(int index) {\n "+ba(t)+"\n }\n ";var r=t.shapeInfo.texShape,o=r[0],a=r[1];if(1===a&&1===o)return"\n float "+n+"(int index) {\n return sampleTexture("+e+", halfCR);\n }\n ";var i=xa(e);if(1===a)return"\n float "+n+"(int index) {\n vec2 uv = vec2(0.5, (float(index + "+i+") + 0.5) / "+o+".0);\n return sampleTexture("+e+", uv);\n }\n ";if(1===o)return"\n float "+n+"(int index) {\n vec2 uv = vec2((float(index + "+i+") + 0.5) / "+a+".0, 0.5);\n return sampleTexture("+e+", uv);\n }\n ";return"\n float "+n+"(int index) {\n vec2 uv = uvFromFlat("+o+", "+a+", index + "+i+");\n return sampleTexture("+e+", uv);\n }\n "}(t);case 2:return function(t){var e=t.shapeInfo.logicalShape,n=t.name,r="get"+n.charAt(0).toUpperCase()+n.slice(1),o=t.shapeInfo.texShape;if(null!=o&&S(e,o)){var a=o[0],i=o[1];return"\n float "+r+"(int row, int col) {\n vec2 uv = (vec2(col, row) + halfCR) / vec2("+i+".0, "+a+".0);\n return sampleTexture("+n+", uv);\n }\n "}var s=M(e),u=s.newShape,c=s.keptDims,l=u;if(l.length<e.length){var h=Ca(t,l);return"\n "+da(h)+"\n float "+r+"(int row, int col) {\n return "+r+"("+Ea(["row","col"],c)+");\n }\n "}if(t.shapeInfo.isUniform)return"\n float "+r+"(int row, int col) {\n int index = round(dot(vec2(row, col), vec2("+e[1]+", 1)));\n "+ba(t)+"\n }\n ";var f=o[0],d=o[1],p=xa(n);if(1===d)return"\n float "+r+"(int row, int col) {\n float index = dot(vec3(row, col, "+p+"), vec3("+e[1]+", 1, 1));\n vec2 uv = vec2(0.5, (index + 0.5) / "+f+".0);\n return sampleTexture("+n+", uv);\n }\n ";if(1===f)return"\n float "+r+"(int row, int col) {\n float index = dot(vec3(row, col, "+p+"), vec3("+e[1]+", 1, 1));\n vec2 uv = vec2((index + 0.5) / "+d+".0, 0.5);\n return sampleTexture("+n+", uv);\n }\n ";return"\n float "+r+"(int row, int col) {\n // Explicitly use integer operations as dot() only works on floats.\n int index = row * "+e[1]+" + col + "+p+";\n vec2 uv = uvFromFlat("+f+", "+d+", index);\n return sampleTexture("+n+", uv);\n }\n"}(t);case 3:return function(t){var e=t.shapeInfo.logicalShape,n=t.name,r="get"+n.charAt(0).toUpperCase()+n.slice(1),o=e[1]*e[2],a=e[2],i=M(e),s=i.newShape,u=i.keptDims,c=s;if(c.length<e.length){var l=Ca(t,c);return"\n "+da(l)+"\n float "+r+"(int row, int col, int depth) {\n return "+r+"("+Ea(["row","col","depth"],u)+");\n }\n "}if(t.shapeInfo.isUniform)return"\n float "+r+"(int row, int col, int depth) {\n int index = round(dot(vec3(row, col, depth),\n vec3("+o+", "+a+", 1)));\n "+ba(t)+"\n }\n ";var h=t.shapeInfo.texShape,f=h[0],d=h[1],p=t.shapeInfo.flatOffset;if(d===o&&null==p)return"\n float "+r+"(int row, int col, int depth) {\n float texR = float(row);\n float texC = dot(vec2(col, depth), vec2("+a+", 1));\n vec2 uv = (vec2(texC, texR) + halfCR) /\n vec2("+d+".0, "+f+".0);\n return sampleTexture("+n+", uv);\n }\n ";if(d===a&&null==p)return"\n float "+r+"(int row, int col, int depth) {\n float texR = dot(vec2(row, col), vec2("+e[1]+", 1));\n float texC = float(depth);\n vec2 uv = (vec2(texC, texR) + halfCR) / vec2("+d+".0, "+f+".0);\n return sampleTexture("+n+", uv);\n }\n ";var v=xa(n);return"\n float "+r+"(int row, int col, int depth) {\n // Explicitly use integer operations as dot() only works on floats.\n int index = row * "+o+" + col * "+a+" + depth + "+v+";\n vec2 uv = uvFromFlat("+f+", "+d+", index);\n return sampleTexture("+n+", uv);\n }\n "}(t);case 4:return function(t){var e=t.shapeInfo.logicalShape,n=t.name,r="get"+n.charAt(0).toUpperCase()+n.slice(1),o=e[3],a=e[2]*o,i=e[1]*a,s=M(e),u=s.newShape,c=s.keptDims;if(u.length<e.length){var l=Ca(t,u);return"\n "+da(l)+"\n float "+r+"(int row, int col, int depth, int depth2) {\n return "+r+"("+Ea(["row","col","depth","depth2"],c)+");\n }\n "}if(t.shapeInfo.isUniform)return"\n float "+r+"(int row, int col, int depth, int depth2) {\n int index = round(dot(vec4(row, col, depth, depth2),\n vec4("+i+", "+a+", "+o+", 1)));\n "+ba(t)+"\n }\n ";var h=t.shapeInfo.flatOffset,f=t.shapeInfo.texShape,d=f[0],p=f[1];if(p===i&&null==h)return"\n float "+r+"(int row, int col, int depth, int depth2) {\n float texR = float(row);\n float texC =\n dot(vec3(col, depth, depth2),\n vec3("+a+", "+o+", 1));\n vec2 uv = (vec2(texC, texR) + halfCR) /\n vec2("+p+".0, "+d+".0);\n return sampleTexture("+n+", uv);\n }\n ";if(p===o&&null==h)return"\n float "+r+"(int row, int col, int depth, int depth2) {\n float texR = dot(vec3(row, col, depth),\n vec3("+e[1]*e[2]+", "+e[2]+", 1));\n float texC = float(depth2);\n vec2 uv = (vec2(texC, texR) + halfCR) /\n vec2("+p+".0, "+d+".0);\n return sampleTexture("+n+", uv);\n }\n ";var v=xa(n);return"\n float "+r+"(int row, int col, int depth, int depth2) {\n // Explicitly use integer operations as dot() only works on floats.\n int index = row * "+i+" + col * "+a+" +\n depth * "+o+" + depth2;\n vec2 uv = uvFromFlat("+d+", "+p+", index + "+v+");\n return sampleTexture("+n+", uv);\n }\n "}(t);case 5:return function(t){var e=t.shapeInfo.logicalShape,n=t.name,r="get"+n.charAt(0).toUpperCase()+n.slice(1),o=e[4],a=e[3]*o,i=e[2]*a,s=e[1]*i,u=M(e),c=u.newShape,l=u.keptDims;if(c.length<e.length){var h=Ca(t,c);return"\n "+da(h)+"\n float "+r+"(int row, int col, int depth, int depth2, int depth3) {\n return "+r+"("+Ea(["row","col","depth","depth2","depth3"],l)+");\n }\n "}if(t.shapeInfo.isUniform)return"\n float "+r+"(int row, int col, int depth, int depth2, int depth3) {\n float index = dot(\n vec4(row, col, depth, depth2),\n vec4("+s+", "+i+", "+a+", "+o+")) +\n depth3;\n "+ba(t)+"\n }\n ";var f=t.shapeInfo.flatOffset,d=t.shapeInfo.texShape,p=d[0],v=d[1];if(v===s&&null==f)return"\n float "+r+"(int row, int col, int depth, int depth2, int depth3) {\n int texR = row;\n float texC = dot(vec4(col, depth, depth2, depth3),\n vec4("+i+", "+a+", "+o+", 1));\n vec2 uv = (vec2(texC, texR) + halfCR) /\n vec2("+v+".0, "+p+".0);\n return sampleTexture("+n+", uv);\n }\n ";if(v===o&&null==f)return"\n float "+r+"(int row, int col, int depth, int depth2, int depth3) {\n float texR = dot(\n vec4(row, col, depth, depth2),\n vec4("+e[1]*e[2]*e[3]+",\n "+e[2]*e[3]+", "+e[3]+", 1));\n int texC = depth3;\n vec2 uv = (vec2(texC, texR) + halfCR) /\n vec2("+v+".0, "+p+".0);\n return sampleTexture("+n+", uv);\n }\n ";var m=xa(n);return"\n float "+r+"(int row, int col, int depth, int depth2, int depth3) {\n // Explicitly use integer operations as dot() only works on floats.\n int index = row * "+s+" + col * "+i+" + depth * "+a+" +\n depth2 * "+o+" + depth3 + "+m+";\n vec2 uv = uvFromFlat("+p+", "+v+", index);\n return sampleTexture("+n+", uv);\n }\n "}(t);case 6:return function(t){var e=t.shapeInfo.logicalShape,n=t.name,r="get"+n.charAt(0).toUpperCase()+n.slice(1),o=M(e),a=o.newShape,i=o.keptDims;if(a.length<e.length){var s=Ca(t,a);return"\n "+da(s)+"\n float "+r+"(int row, int col, int depth,\n int depth2, int depth3, int depth4) {\n return "+r+"("+Ea(["row","col","depth","depth2","depth3","depth4"],i)+");\n }\n "}var u=e[5],c=e[4]*u,l=e[3]*c,h=e[2]*l,f=e[1]*h;if(t.shapeInfo.isUniform)return"\n float "+r+"(int row, int col, int depth,\n int depth2, int depth3, int depth4) {\n int index = round(dot(\n vec4(row, col, depth, depth2),\n vec4("+f+", "+h+", "+l+", "+c+")) +\n dot(\n vec2(depth3, depth4),\n vec2("+u+", 1)));\n "+ba(t)+"\n }\n ";var d=t.shapeInfo.flatOffset,p=t.shapeInfo.texShape,v=p[0],m=p[1];if(m===f&&null==d)return"\n float "+r+"(int row, int col, int depth,\n int depth2, int depth3, int depth4) {\n int texR = row;\n float texC = dot(vec4(col, depth, depth2, depth3),\n vec4("+h+", "+l+", "+c+", "+u+")) +\n float(depth4);\n vec2 uv = (vec2(texC, texR) + halfCR) /\n vec2("+m+".0, "+v+".0);\n return sampleTexture("+n+", uv);\n }\n ";if(m===u&&null==d)return"\n float "+r+"(int row, int col, int depth,\n int depth2, int depth3, int depth4) {\n float texR = dot(vec4(row, col, depth, depth2),\n vec4("+e[1]*e[2]*e[3]*e[4]+",\n "+e[2]*e[3]*e[4]+",\n "+e[3]*e[4]+",\n "+e[4]+")) + float(depth3);\n int texC = depth4;\n vec2 uv = (vec2(texC, texR) + halfCR) /\n vec2("+m+".0, "+v+".0);\n return sampleTexture("+n+", uv);\n }\n ";var g=xa(n);return"\n float "+r+"(int row, int col, int depth,\n int depth2, int depth3, int depth4) {\n // Explicitly use integer operations as dot() only works on floats.\n int index = row * "+f+" + col * "+h+" + depth * "+l+" +\n depth2 * "+c+" + depth3 * "+u+" + depth4 + "+g+";\n vec2 uv = uvFromFlat("+v+", "+m+", index);\n return sampleTexture("+n+", uv);\n }\n "}(t);default:throw new Error(e.length+"-D input sampling is not yet supported")}}function pa(t){var e,n,r;switch(t.shapeInfo.logicalShape.length){case 0:return e=t.name,n="get"+e.charAt(0).toUpperCase()+e.slice(1),r=ua(),"\n vec4 "+n+"() {\n return "+r.texture2D+"("+e+", halfCR);\n }\n ";case 1:return function(t){var e=t.name,n="get"+e.charAt(0).toUpperCase()+e.slice(1),r=t.shapeInfo.texShape,o=[Math.ceil(r[0]/2),Math.ceil(r[1]/2)],a=ua();return"\n vec4 "+n+"(int index) {\n vec2 uv = packedUVfrom1D(\n "+o[0]+", "+o[1]+", index);\n return "+a.texture2D+"("+e+", uv);\n }\n "}(t);case 2:return function(t){var e=t.shapeInfo.logicalShape,n=t.name,r="get"+n.charAt(0).toUpperCase()+n.slice(1),o=t.shapeInfo.texShape,a=o[0],i=o[1],s=ua();if(null!=o&&S(e,o))return"\n vec4 "+r+"(int row, int col) {\n vec2 uv = (vec2(col, row) + halfCR) / vec2("+i+".0, "+a+".0);\n\n return "+s.texture2D+"("+n+", uv);\n }\n ";var u=[Math.ceil(o[0]/2),Math.ceil(o[1]/2)],c=Math.ceil(e[1]/2);return"\n vec4 "+r+"(int row, int col) {\n vec2 uv = packedUVfrom2D("+c+", "+u[0]+", "+u[1]+", row, col);\n return "+s.texture2D+"("+n+", uv);\n }\n "}(t);case 3:return function(t){var e=t.shapeInfo.logicalShape,n=t.name,r="get"+n.charAt(0).toUpperCase()+n.slice(1),o=t.shapeInfo.texShape,a=[Math.ceil(o[0]/2),Math.ceil(o[1]/2)];if(1===e[0]){var i=e.slice(1),s=Ca(t,i);return"\n "+pa(s)+"\n vec4 "+r+"(int b, int row, int col) {\n return "+r+"("+Ea(["b","row","col"],[1,2])+");\n }\n "}var u=a[0],c=a[1],l=Math.ceil(e[2]/2),h=l*Math.ceil(e[1]/2),f=ua();return"\n vec4 "+r+"(int b, int row, int col) {\n vec2 uv = packedUVfrom3D(\n "+u+", "+c+", "+h+", "+l+", b, row, col);\n return "+f.texture2D+"("+n+", uv);\n }\n "}(t);default:return function(t){for(var e=t.shapeInfo.logicalShape,n=e.length,r=t.name,o="get"+r.charAt(0).toUpperCase()+r.slice(1),a=t.shapeInfo.texShape,i=[Math.ceil(a[0]/2),Math.ceil(a[1]/2)],s=i[0],u=i[1],c=Math.ceil(e[n-1]/2),l=c*Math.ceil(e[n-2]/2),h="int b, int row, int col",f="b * "+l+" + (row / 2) * "+c+" + (col / 2)",d=2;d<n-1;d++)h="int b"+d+", "+h,l*=e[n-d-1],f="b"+d+" * "+l+" + "+f;var p=ua();return"\n vec4 "+o+"("+h+") {\n int index = "+f+";\n int texR = index / "+u+";\n int texC = index - texR * "+u+";\n vec2 uv = (vec2(texC, texR) + halfCR) / vec2("+u+", "+s+");\n return "+p.texture2D+"("+r+", uv);\n }\n "}(t)}}var va="\nvec2 uvFromFlat(int texNumR, int texNumC, int index) {\n int texR = index / texNumC;\n int texC = index - texR * texNumC;\n return (vec2(texC, texR) + halfCR) / vec2(texNumC, texNumR);\n}\nvec2 packedUVfrom1D(int texNumR, int texNumC, int index) {\n int texelIndex = index / 2;\n int texR = texelIndex / texNumC;\n int texC = texelIndex - texR * texNumC;\n return (vec2(texC, texR) + halfCR) / vec2(texNumC, texNumR);\n}\n",ma="\nvec2 packedUVfrom2D(int texelsInLogicalRow, int texNumR,\n int texNumC, int row, int col) {\n int texelIndex = (row / 2) * texelsInLogicalRow + (col / 2);\n int texR = texelIndex / texNumC;\n int texC = texelIndex - texR * texNumC;\n return (vec2(texC, texR) + halfCR) / vec2(texNumC, texNumR);\n}\n",ga="\nvec2 packedUVfrom3D(int texNumR, int texNumC,\n int texelsInBatch, int texelsInLogicalRow, int b,\n int row, int col) {\n int index = b * texelsInBatch + (row / 2) * texelsInLogicalRow + (col / 2);\n int texR = index / texNumC;\n int texC = index - texR * texNumC;\n return (vec2(texC, texR) + halfCR) / vec2(texNumC, texNumR);\n}\n",ya="\n float getChannel(vec4 frag, vec2 innerDims) {\n vec2 modCoord = mod(innerDims, 2.);\n return modCoord.x == 0. ?\n (modCoord.y == 0. ? frag.r : frag.g) :\n (modCoord.y == 0. ? frag.b : frag.a);\n }\n float getChannel(vec4 frag, int dim) {\n float modCoord = mod(float(dim), 2.);\n return modCoord == 0. ? frag.r : frag.g;\n }\n";function xa(t){return"offset"+t}function ba(t){var e=t.name,n=k(t.shapeInfo.logicalShape);return n<2?"return "+e+";":"\n for (int i = 0; i < "+n+"; i++) {\n if (i == index) {\n return "+e+"[i];\n }\n }\n "}function wa(t){if(t<=1)return"int";if(2===t)return"ivec2";if(3===t)return"ivec3";if(4===t)return"ivec4";if(5===t)return"ivec5";if(6===t)return"ivec6";throw Error("GPU for rank "+t+" is not yet supported")}function Ca(t,e){var n=JSON.parse(JSON.stringify(t));return n.shapeInfo.logicalShape=e,n}function Ea(t,e){return e.map((function(e){return t[e]})).join(", ")}var Ra=function(t,e,n,r){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!0,C(t.length>2,(function(){return"Packed arg"+(n.charAt(0).toUpperCase()+n.slice(1))+" supports only inputs with rank above 2."}));var o=t[t.length-1],a=Math.ceil(o/e);this.outputShape=t.slice(0,-1),a>1&&this.outputShape.push(a),r||this.variableNames.push("bestIndicesA");var i,s,u=this.outputShape,c=u.length,l=wa(c),h=sa("coords",c);if(1===a){var f=wa(s=c+1);i="\n "+f+" sourceLocR = "+f+"("+h.join()+", 0);\n ++"+h[c-1]+";\n "+f+" sourceLocG = "+f+"("+h.join()+", 0);\n ++"+h[c-2]+";\n "+f+" sourceLocA = "+f+"("+h.join()+", 0);\n --"+h[c-1]+";\n "+f+" sourceLocB = "+f+"("+h.join()+", 0);\n --"+h[c-2]+";"}else s=c,i="\n "+l+" sourceLocR = coords;\n ++"+h[c-1]+";\n "+l+" sourceLocG = coords;\n ++"+h[c-2]+";\n "+l+" sourceLocA = coords;\n --"+h[c-1]+";\n "+l+" sourceLocB = coords;\n --"+h[c-2]+";";var d=["x","y","z","w","u","v"].slice(0,s),p="."+d[s-1],v=d.map((function(t){return"int "+t})),m=sa("sourceLocR",s-1).concat("inIdx.r"),g=sa("sourceLocG",s-1).concat("inIdx.g"),y=sa("sourceLocB",s-1).concat("inIdx.b"),x=sa("sourceLocA",s-1).concat("inIdx.a"),b="max"===n?"greaterThan":"lessThan",w=r?"":"\n inIdx = round(vec4(getBestIndicesAChannel("+m.join()+"),\n getBestIndicesAChannel("+g.join()+"),\n getBestIndicesAChannel("+y.join()+"),\n getBestIndicesAChannel("+x.join()+")));",E="vec4(\n getAChannel("+m.join()+"),\n hasNextCol ? getAChannel("+g.join()+") : 0.,\n hasNextRow ? getAChannel("+y.join()+") : 0.,\n hasNextRow && hasNextCol ? getAChannel("+x.join()+") : 0.)",R=r?"":"\n float getBestIndicesAChannel("+v.join()+") {\n return getChannel(getBestIndicesA("+d.join()+"),\n vec2("+d.slice(-2).join()+"));\n }";this.userCode="\n float getAChannel("+v.join()+") {\n return getChannel(getA("+d.join()+"),\n vec2("+d.slice(-2).join()+"));\n }\n "+R+"\n void main() {\n "+l+" coords = getOutputCoords();\n bool hasNextCol = "+h[c-1]+" < "+(u[c-1]-1)+";\n bool hasNextRow = "+h[c-2]+" < "+(u[c-2]-1)+";\n "+i+"\n ivec4 srcIdx = ivec4(sourceLocR"+p+", sourceLocG"+p+",\n sourceLocB"+p+", sourceLocA"+p+") * "+e+";\n ivec4 inIdx = srcIdx;\n vec4 bestIndex = vec4(inIdx);\n vec4 bestValue = "+E+";\n\n for (int i = 0; i < "+e+"; i++) {\n inIdx = srcIdx;\n "+w+"\n vec4 candidate = "+E+";\n bvec4 nan = isnan(candidate);\n bvec4 replace = bvec4(\n vec4("+b+"(candidate, bestValue)) * (vec4(1.0) - vec4(nan)));\n\n bestValue = vec4(replace.x ? candidate.x : bestValue.x,\n replace.y ? candidate.y : bestValue.y,\n replace.z ? candidate.z : bestValue.z,\n replace.w ? candidate.w : bestValue.w);\n bestIndex = mix(bestIndex, vec4(inIdx), vec4(replace));\n srcIdx++;\n }\n setOutput(bestIndex);\n }\n "},Ia=function(t){this.variableNames=["dy"],this.outputShape=t.inShape;var e=t.filterHeight,n=t.filterWidth,r=t.strideHeight,o=t.strideWidth,a=t.dilationHeight,i=t.dilationWidth,s=t.effectiveFilterHeight,u=t.effectiveFilterWidth,c=s-1-t.padInfo.top,l=u-1-t.padInfo.left,h=1/(e*n);this.userCode="\n const ivec2 pads = ivec2("+c+", "+l+");\n const float avgMultiplier = float("+h+");\n\n void main() {\n ivec4 coords = getOutputCoords();\n int b = coords[0];\n int d = coords[3];\n\n ivec2 dyRCCorner = coords.yz - pads;\n int dyRCorner = dyRCCorner.x;\n int dyCCorner = dyRCCorner.y;\n\n // Convolve dy(?, ?, d) with pos mask(:, :, d) to get dx(xR, xC, d).\n // ? = to be determined. : = across all values in that axis.\n float dotProd = 0.0;\n for (int wR = 0; wR < "+s+";\n wR += "+a+") {\n float dyR = float(dyRCorner + wR) / "+r+".0;\n\n if (dyR < 0.0 || dyR >= "+t.outHeight+".0 || fract(dyR) > 0.0) {\n continue;\n }\n int idyR = int(dyR);\n\n for (int wC = 0; wC < "+u+";\n wC+= "+i+") {\n float dyC = float(dyCCorner + wC) / "+o+".0;\n\n if (dyC < 0.0 || dyC >= "+t.outWidth+".0 ||\n fract(dyC) > 0.0) {\n continue;\n }\n int idyC = int(dyC);\n\n float dyValue = getDy(b, idyR, idyC, d);\n\n dotProd += dyValue * avgMultiplier;\n }\n }\n setOutput(dotProd);\n }\n "},ka=function(t){this.variableNames=["dy"],this.outputShape=t.inShape;var e=t.filterDepth,n=t.filterHeight,r=t.filterWidth,o=t.strideDepth,a=t.strideHeight,i=t.strideWidth,s=t.dilationDepth,u=t.dilationHeight,c=t.dilationWidth,l=t.effectiveFilterDepth,h=t.effectiveFilterHeight,f=t.effectiveFilterWidth,d=l-1-t.padInfo.front,p=h-1-t.padInfo.top,v=f-1-t.padInfo.left,m=1/(e*n*r);this.userCode="\n const ivec3 pads = ivec3("+d+", "+p+", "+v+");\n const float avgMultiplier = float("+m+");\n\n void main() {\n ivec5 coords = getOutputCoords();\n int batch = coords.x;\n int ch = coords.u;\n\n ivec3 dyCorner = ivec3(coords.y, coords.z, coords.w) - pads;\n int dyDCorner = dyCorner.x;\n int dyRCorner = dyCorner.y;\n int dyCCorner = dyCorner.z;\n\n // Convolve dy(?, ?, ?, d) with pos mask(:, :, :, ch) to get\n // dx(xD, xR, xC, ch).\n // ? = to be determined. : = across all values in that axis.\n float dotProd = 0.0;\n\n for (int wD = 0; wD < "+l+";\n wD += "+s+") {\n float dyD = float(dyDCorner + wD) / "+o+".0;\n\n if (dyD < 0.0 || dyD >= "+t.outDepth+".0 || fract(dyD) > 0.0) {\n continue;\n }\n int idyD = int(dyD);\n\n for (int wR = 0; wR < "+h+";\n wR += "+u+") {\n float dyR = float(dyRCorner + wR) / "+a+".0;\n\n if (dyR < 0.0 || dyR >= "+t.outHeight+".0 ||\n fract(dyR) > 0.0) {\n continue;\n }\n int idyR = int(dyR);\n\n for (int wC = 0; wC < "+f+";\n wC += "+c+") {\n float dyC = float(dyCCorner + wC) / "+i+".0;\n\n if (dyC < 0.0 || dyC >= "+t.outWidth+".0 ||\n fract(dyC) > 0.0) {\n continue;\n }\n int idyC = int(dyC);\n\n float dyValue = getDy(batch, idyD, idyR, idyC, ch);\n\n dotProd += dyValue * avgMultiplier;\n }\n }\n }\n setOutput(dotProd);\n }\n "},Sa=function(t,e,n,r,o,a){this.outputShape=[],this.variableNames=["x","mean","variance"],Ro(t,e),Ro(t,n);var i="0.0";null!=r&&(Ro(t,r),this.variableNames.push("offset"),i="getOffsetAtOutCoords()");var s="1.0";null!=o&&(Ro(t,o),this.variableNames.push("scale"),s="getScaleAtOutCoords()"),this.outputShape=t,this.userCode="\n void main() {\n float x = getXAtOutCoords();\n float mean = getMeanAtOutCoords();\n float variance = getVarianceAtOutCoords();\n float offset = "+i+";\n float scale = "+s+";\n float inv = scale * inversesqrt(variance + float("+a+"));\n setOutput(dot(vec3(x, -mean, offset), vec3(inv, inv, 1)));\n }\n "},Aa=function(t,e,n,r,o,a){this.packedInputs=!0,this.packedOutput=!0,this.variableNames=["x","mean","variance"],Ro(t,e),Ro(t,n);var i="vec4(0.0)";null!=r&&(Ro(t,r),this.variableNames.push("offset"),i="getOffsetAtOutCoords()");var s="vec4(1.0)";null!=o&&(Ro(t,o),this.variableNames.push("scale"),s="getScaleAtOutCoords()"),this.outputShape=t,this.userCode="\n void main() {\n vec4 offset = "+i+";\n vec4 scale = "+s+";\n\n vec4 x = getXAtOutCoords();\n vec4 mean = getMeanAtOutCoords();\n vec4 variance = getVarianceAtOutCoords();\n\n vec4 inv = scale * inversesqrt(variance + vec4("+a+"));\n\n setOutput((x - mean) * inv + offset);\n }\n "},Da="return areal * breal - aimag * bimag;",Ta="return areal * bimag + aimag * breal;",Na=function(t,e,n){this.variableNames=["AReal","AImag","BReal","BImag"],this.outputShape=Ro(e,n),this.userCode="\n float binaryOpComplex(\n float areal, float aimag, float breal, float bimag) {\n "+t+"\n }\n\n void main() {\n float areal = getARealAtOutCoords();\n float aimag = getAImagAtOutCoords();\n float breal = getBRealAtOutCoords();\n float bimag = getBImagAtOutCoords();\n setOutput(binaryOpComplex(areal, aimag, breal, bimag));\n }\n "},Fa="return a + b;",_a="return a - b;",Oa="return a * b;",Ma="return (a < 0.) ? b * a : a;",Ba=function(t,e,n){this.variableNames=["A","B"],this.outputShape=Ro(e,n),this.userCode="\n float binaryOperation(float a, float b) {\n "+t+"\n }\n\n void main() {\n float a = getAAtOutCoords();\n float b = getBAtOutCoords();\n setOutput(binaryOperation(a, b));\n }\n "},Pa="\n vec4 aLessThanZero = vec4(lessThan(a, vec4(0.)));\n return (aLessThanZero * (b * a)) + ((vec4(1.0) - aLessThanZero) * a);\n",La=function(t,e,n,r){void 0===r&&(r=!1),this.variableNames=["A","B"],this.supportsBroadcasting=!0,this.packedInputs=!0,this.packedOutput=!0,this.outputShape=Ro(e,n);var o=this.outputShape.length,a="";if(r)if(0===o||1===k(this.outputShape))a="\n result.y = 0.;\n result.z = 0.;\n result.w = 0.;\n ";else if(a="\n "+wa(o)+" coords = getOutputCoords();\n ",1===o)a+="\n result.y = (coords + 1) >= "+this.outputShape[0]+" ? 0. : result.y;\n result.z = 0.;\n result.w = 0.;\n ";else{var i=sa("coords",o);a+="\n bool nextRowOutOfBounds =\n ("+i[o-2]+" + 1) >= "+this.outputShape[o-2]+";\n bool nextColOutOfBounds =\n ("+i[o-1]+" + 1) >= "+this.outputShape[o-1]+";\n result.y = nextColOutOfBounds ? 0. : result.y;\n result.z = nextRowOutOfBounds ? 0. : result.z;\n result.w = nextColOutOfBounds || nextRowOutOfBounds ? 0. : result.w;\n "}this.userCode="\n vec4 binaryOperation(vec4 a, vec4 b) {\n "+t+"\n }\n\n void main() {\n vec4 a = getAAtOutCoords();\n vec4 b = getBAtOutCoords();\n\n vec4 result = binaryOperation(a, b);\n "+a+"\n\n setOutput(result);\n }\n "},Wa=function(){function t(t){this.variableNames=["A"],this.outputShape=t,this.userCode="\n uniform float minVal;\n uniform float maxVal;\n\n void main() {\n float value = getAAtOutCoords();\n if (isnan(value)) {\n setOutput(value);\n return;\n }\n\n setOutput(clamp(value, minVal, maxVal));\n }\n "}return t.prototype.getCustomSetupFunc=function(t,e){var n=this;return function(r,o){null==n.minLoc&&(n.minLoc=r.getUniformLocationNoThrow(o,"minVal"),n.maxLoc=r.getUniformLocationNoThrow(o,"maxVal")),r.gl.uniform1f(n.minLoc,t),r.gl.uniform1f(n.maxLoc,e)}},t}(),Ua=function(){function t(t){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=t,this.userCode="\n uniform float minVal;\n uniform float maxVal;\n\n void main() {\n vec4 value = getAAtOutCoords();\n\n if (any(isnan(value))) {\n setOutput(value);\n return;\n }\n\n setOutput(clamp(value, vec4(minVal), vec4(maxVal)));\n }\n "}return t.prototype.getCustomSetupFunc=function(t,e){var n=this;return function(r,o){null==n.minLoc&&(n.minLoc=r.getUniformLocationNoThrow(o,"minVal"),n.maxLoc=r.getUniformLocationNoThrow(o,"maxVal")),r.gl.uniform1f(n.minLoc,t),r.gl.uniform1f(n.maxLoc,e)}},t}(),Va=function(t){this.variableNames=["real","imag"],this.outputShape=t,this.userCode="\n void main() {\n float re = abs(getRealAtOutCoords());\n float im = abs(getImagAtOutCoords());\n float mx = max(re, im);\n\n // sadly the length function in glsl is not underflow-safe\n // (at least not on Intel GPUs). So the safe solution is\n // to ensure underflow-safety in all cases.\n setOutput(\n mx == 0.0 ? 0.0 : mx * length(vec2(1, min(re, im)/mx))\n );\n }\n "},za=function(t){this.outputShape=[],this.outputShape=Sn(t,1),this.variableNames=t.map((function(t,e){return"T"+e}));var e=new Array(t.length-1);e[0]=t[0][1];for(var n=1;n<e.length;n++)e[n]=e[n-1]+t[n][1];var r=["if (yC < "+e[0]+") setOutput(getT0(yR, yC));"];for(n=1;n<e.length;n++){var o=e[n-1];r.push("else if (yC < "+e[n]+") setOutput(getT"+n+"(yR, yC-"+o+"));")}var a=e.length,i=e[e.length-1];r.push("else setOutput(getT"+a+"(yR, yC-"+i+"));"),this.userCode="\n void main() {\n ivec2 coords = getOutputCoords();\n int yR = coords.x;\n int yC = coords.y;\n\n "+r.join("\n ")+"\n }\n "},Ga=function(t,e){this.packedInputs=!0,this.packedOutput=!0,this.outputShape=[],this.outputShape=Sn(t,e);var n=this.outputShape,r=n.length,o=wa(r),a=sa("coords",r),i=["x","y","z","w","u","v"].slice(0,r);this.variableNames=t.map((function(t,e){return"T"+e}));var s=new Array(t.length-1);s[0]=t[0][e];for(var u=1;u<s.length;u++)s[u]=s[u-1]+t[u][e];var c=i[e],l=i.slice(-2),h=i.join(),f="if ("+c+" < "+s[0]+") {\n return getChannel(\n getT0("+h+"), vec2("+l.join()+"));\n }";for(u=1;u<s.length;u++){var d=s[u-1];f+="\n if ("+c+" < "+s[u]+" && "+c+" >= "+s[u-1]+") {\n return getChannel(\n getT"+u+"("+Ha(i,c,d)+"),\n vec2("+Ha(l,c,d)+"));\n }"}var p=s.length,v=s[s.length-1];f+="\n return getChannel(\n getT"+p+"("+Ha(i,c,v)+"),\n vec2("+Ha(l,c,v)+"));",this.userCode="\n float getValue("+i.map((function(t){return"int "+t}))+") {\n "+f+"\n }\n\n void main() {\n "+o+" coords = getOutputCoords();\n vec4 result = vec4(getValue("+a+"), 0., 0., 0.);\n\n "+a[r-1]+" = "+a[r-1]+" + 1;\n if ("+a[r-1]+" < "+n[r-1]+") {\n result.g = getValue("+a+");\n }\n\n "+a[r-2]+" = "+a[r-2]+" + 1;\n if ("+a[r-2]+" < "+n[r-2]+") {\n result.a = getValue("+a+");\n }\n\n "+a[r-1]+" = "+a[r-1]+" - 1;\n if ("+a[r-2]+" < "+n[r-2]+" &&\n "+a[r-1]+" < "+n[r-1]+") {\n result.b = getValue("+a+");\n }\n setOutput(result);\n }\n "};function Ha(t,e,n){var r=t.indexOf(e);return t.map((function(t,e){return e===r?t+" - "+n:t})).join()}var qa=function(t){this.variableNames=["x","dy"],this.outputShape=t.filterShape;var e=t.strideHeight,n=t.strideWidth,r=t.padInfo.top,o=t.padInfo.left,a="channelsLast"===t.dataFormat;this.userCode="\n void main() {\n ivec4 coords = getOutputCoords();\n int wR = coords.x;\n int wC = coords.y;\n int d1 = coords.z;\n int d2 = coords.w;\n\n // Convolve x(?, ?, d1) with dy(:, :, d2) to get dw(wR, wC, d1, d2).\n // ? = to be determined. : = across all values in that axis.\n float dotProd = 0.0;\n\n for (int b = 0; b < "+t.batchSize+"; b++) {\n for (int yR = 0; yR < "+t.outHeight+"; yR++) {\n int xR = wR + yR * "+e+" - "+r+";\n\n if (xR < 0 || xR >= "+t.inHeight+") {\n continue;\n }\n\n for (int yC = 0; yC < "+t.outWidth+"; yC++) {\n int xC = wC + yC * "+n+" - "+o+";\n\n if (xC < 0 || xC >= "+t.inWidth+") {\n continue;\n }\n\n if ("+a+") {\n float dyValue = getDy(b, yR, yC, d2);\n float xValue = getX(b, xR, xC, d1);\n dotProd += (xValue * dyValue);\n } else {\n float dyValue = getDy(b, d2, yR, yC);\n float xValue = getX(b, d1, xR, xC);\n dotProd += (xValue * dyValue);\n }\n\n }\n }\n }\n setOutput(dotProd);\n }\n "},Ka=function(t){this.variableNames=["dy","W"],this.outputShape=t.inShape;var e=t.filterHeight,n=t.filterWidth,r=t.strideHeight,o=t.strideWidth,a="channelsLast"===t.dataFormat,i=e-1-t.padInfo.top,s=n-1-t.padInfo.left,u=a?1:2,c=a?2:3,l=a?3:1;this.userCode="\n const ivec2 pads = ivec2("+i+", "+s+");\n\n void main() {\n ivec4 coords = getOutputCoords();\n int batch = coords[0];\n int d1 = coords["+l+"];\n\n ivec2 dyCorner = ivec2(coords["+u+"], coords["+c+"]) - pads;\n int dyRCorner = dyCorner.x;\n int dyCCorner = dyCorner.y;\n\n // Convolve dy(?, ?, d2) with w(:, :, d1, d2) to compute dx(xR, xC, d1).\n // ? = to be determined. : = across all values in that axis.\n float dotProd = 0.0;\n for (int wR = 0; wR < "+e+"; wR++) {\n float dyR = float(dyRCorner + wR) / "+r+".0;\n\n if (dyR < 0.0 || dyR >= "+t.outHeight+".0 || fract(dyR) > 0.0) {\n continue;\n }\n int idyR = int(dyR);\n\n int wRPerm = "+e+" - 1 - wR;\n\n for (int wC = 0; wC < "+n+"; wC++) {\n float dyC = float(dyCCorner + wC) / "+o+".0;\n\n if (dyC < 0.0 || dyC >= "+t.outWidth+".0 ||\n fract(dyC) > 0.0) {\n continue;\n }\n int idyC = int(dyC);\n\n int wCPerm = "+n+" - 1 - wC;\n\n for (int d2 = 0; d2 < "+t.outChannels+"; d2++) {\n\n if ("+a+") {\n float xValue = getDy(batch, idyR, idyC, d2);\n float wValue = getW(wRPerm, wCPerm, d1, d2);\n dotProd += xValue * wValue;\n } else {\n float xValue = getDy(batch, d2, idyR, idyC);\n float wValue = getW(wRPerm, wCPerm, d1, d2);\n dotProd += xValue * wValue;\n }\n\n }\n }\n }\n setOutput(dotProd);\n }\n "},ja=function(t){this.variableNames=["x","dy"],this.outputShape=t.filterShape;var e=t.strideDepth,n=t.strideHeight,r=t.strideWidth,o=t.padInfo.front,a=t.padInfo.top,i=t.padInfo.left;this.userCode="\n void main() {\n ivec5 coords = getOutputCoords();\n int wF = coords.x;\n int wR = coords.y;\n int wC = coords.z;\n int d1 = coords.w;\n int d2 = coords.u;\n\n float dotProd = 0.0;\n\n for (int b = 0; b < "+t.batchSize+"; b++) {\n for (int yF = 0; yF < "+t.outDepth+"; yF++) {\n int xF = wF + yF * "+e+" - "+o+";\n\n if (xF < 0 || xF >= "+t.inDepth+") {\n continue;\n }\n\n for (int yR = 0; yR < "+t.outHeight+"; yR++) {\n int xR = wR + yR * "+n+" - "+a+";\n\n if (xR < 0 || xR >= "+t.inHeight+") {\n continue;\n }\n\n for (int yC = 0; yC < "+t.outWidth+"; yC++) {\n int xC = wC + yC * "+r+" - "+i+";\n\n if (xC < 0 || xC >= "+t.inWidth+") {\n continue;\n }\n\n float dyValue = getDy(b, yF, yR, yC, d2);\n float xValue = getX(b, xF, xR, xC, d1);\n dotProd += (xValue * dyValue);\n }\n }\n }\n }\n setOutput(dotProd);\n }\n "},Xa=function(t){this.variableNames=["dy","W"],this.outputShape=t.inShape;var e=t.filterDepth,n=t.filterHeight,r=t.filterWidth,o=t.strideDepth,a=t.strideHeight,i=t.strideWidth,s=e-1-t.padInfo.front,u=n-1-t.padInfo.top,c=r-1-t.padInfo.left;this.userCode="\n const ivec3 pads = ivec3("+s+", "+u+", "+c+");\n\n void main() {\n ivec5 coords = getOutputCoords();\n int batch = coords.x;\n int d1 = coords.u;\n\n\n ivec3 dyCorner = ivec3(coords.y, coords.z, coords.w) - pads;\n int dyFCorner = dyCorner.x;\n int dyRCorner = dyCorner.y;\n int dyCCorner = dyCorner.z;\n\n float dotProd = 0.0;\n for (int wF = 0; wF < "+e+"; wF++) {\n float dyF = float(dyFCorner + wF) / "+o+".0;\n\n if (dyF < 0.0 || dyF >= "+t.outDepth+".0 || fract(dyF) > 0.0) {\n continue;\n }\n int idyF = int(dyF);\n\n int wFPerm = "+e+" - 1 - wF;\n\n for (int wR = 0; wR < "+n+"; wR++) {\n float dyR = float(dyRCorner + wR) / "+a+".0;\n\n if (dyR < 0.0 || dyR >= "+t.outHeight+".0 ||\n fract(dyR) > 0.0) {\n continue;\n }\n int idyR = int(dyR);\n\n int wRPerm = "+n+" - 1 - wR;\n\n for (int wC = 0; wC < "+r+"; wC++) {\n float dyC = float(dyCCorner + wC) / "+i+".0;\n\n if (dyC < 0.0 || dyC >= "+t.outWidth+".0 ||\n fract(dyC) > 0.0) {\n continue;\n }\n int idyC = int(dyC);\n\n int wCPerm = "+r+" - 1 - wC;\n\n for (int d2 = 0; d2 < "+t.outChannels+"; d2++) {\n float xValue = getDy(batch, idyF, idyR, idyC, d2);\n float wValue = getW(wFPerm, wRPerm, wCPerm, d1, d2);\n dotProd += xValue * wValue;\n }\n }\n }\n }\n setOutput(dotProd);\n }\n "},Ya=function(t){this.variableNames=["x","dy"],this.outputShape=t.filterShape;var e=t.strideHeight,n=t.strideWidth,r=t.padInfo.top,o=t.padInfo.left,a=t.outChannels/t.inChannels;this.userCode="\n void main() {\n ivec4 coords = getOutputCoords();\n int wR = coords.x;\n int wC = coords.y;\n int d1 = coords.z;\n int dm = coords.w;\n int d2 = d1 * "+a+" + dm;\n\n float dotProd = 0.0;\n\n // TO DO: Vec4 over the batch size\n for (int b = 0; b < "+t.batchSize+"; b++) {\n for (int yR = 0; yR < "+t.outHeight+"; yR++) {\n int xR = wR + yR * "+e+" - "+r+";\n\n if (xR < 0 || xR >= "+t.inHeight+") {\n continue;\n }\n\n for (int yC = 0; yC < "+t.outWidth+"; yC++) {\n int xC = wC + yC * "+n+" - "+o+";\n\n if (xC < 0 || xC >= "+t.inWidth+") {\n continue;\n }\n\n float dyValue = getDy(b, yR, yC, d2);\n float xValue = getX(b, xR, xC, d1);\n dotProd += (xValue * dyValue);\n }\n }\n }\n setOutput(dotProd);\n }\n "},$a=function(t){this.variableNames=["dy","W"],this.outputShape=t.inShape;var e=t.filterHeight,n=t.filterWidth,r=t.strideHeight,o=t.strideWidth,a=e-1-t.padInfo.top,i=n-1-t.padInfo.left,s=t.outChannels/t.inChannels;this.userCode="\n const ivec2 pads = ivec2("+a+", "+i+");\n\n void main() {\n ivec4 coords = getOutputCoords();\n int batch = coords[0];\n int d1 = coords[3];\n ivec2 dyCorner = coords.yz - pads;\n int dyRCorner = dyCorner.x;\n int dyCCorner = dyCorner.y;\n\n float dotProd = 0.0;\n\n for (int wR = 0; wR < "+e+"; wR++) {\n float dyR = float(dyRCorner + wR) / "+r+".0;\n\n if (dyR < 0.0 || dyR >= "+t.outHeight+".0 || fract(dyR) > 0.0) {\n continue;\n }\n int idyR = int(dyR);\n\n int wRPerm = "+e+" - 1 - wR;\n\n for (int wC = 0; wC < "+n+"; wC++) {\n float dyC = float(dyCCorner + wC) / "+o+".0;\n\n if (dyC < 0.0 || dyC >= "+t.outWidth+".0 ||\n fract(dyC) > 0.0) {\n continue;\n }\n int idyC = int(dyC);\n\n int wCPerm = "+n+" - 1 - wC;\n\n // TO DO: Vec4 over the channelMul\n for (int dm = 0; dm < "+s+"; dm++) {\n int d2 = d1 * "+s+" + dm;\n float xValue = getDy(batch, idyR, idyC, d2);\n float wValue = getW(wRPerm, wCPerm, d1, dm);\n dotProd += xValue * wValue;\n }\n }\n }\n setOutput(dotProd);\n }\n "},Qa=function(t,e,n,r){void 0===e&&(e=!1),void 0===n&&(n=null),void 0===r&&(r=!1),this.variableNames=["x","W"],this.outputShape=t.outShape;var o=t.padInfo.top,a=t.padInfo.left,i=t.strideHeight,s=t.strideWidth,u=t.dilationHeight,c=t.dilationWidth,l=t.filterHeight,h=t.filterWidth,f=4*Math.floor(t.inChannels/4),d=t.inChannels%4,p="channelsLast"===t.dataFormat,v=p?1:2,m=p?2:3,g=p?3:1,y="",x="";n&&(y=r?"float activation(float a) {\n float b = getPreluActivationWeightsAtOutCoords();\n "+n+"\n }":"\n float activation(float x) {\n "+n+"\n }\n ",x="result = activation(result);");var b=e?"result += getBiasAtOutCoords();":"";e&&this.variableNames.push("bias"),r&&this.variableNames.push("preluActivationWeights"),this.userCode="\n "+y+"\n\n const ivec2 strides = ivec2("+i+", "+s+");\n const ivec2 pads = ivec2("+o+", "+a+");\n\n void main() {\n ivec4 coords = getOutputCoords();\n int batch = coords[0];\n int d2 = coords["+g+"];\n\n ivec2 xRCCorner =\n ivec2(coords["+v+"], coords["+m+"]) * strides - pads;\n int xRCorner = xRCCorner.x;\n int xCCorner = xRCCorner.y;\n\n // Convolve x(?, ?, d1) with w(:, :, d1, d2) to get y(yR, yC, d2).\n // ? = to be determined. : = across all values in that axis.\n float dotProd = 0.0;\n for (int wR = 0; wR < "+l+"; wR++) {\n int xR = xRCorner + wR * "+u+";\n\n if (xR < 0 || xR >= "+t.inHeight+") {\n continue;\n }\n\n for (int wC = 0; wC < "+h+"; wC++) {\n int xC = xCCorner + wC * "+c+";\n\n if (xC < 0 || xC >= "+t.inWidth+") {\n continue;\n }\n\n for (int d1 = 0; d1 < "+f+"; d1 += 4) {\n vec4 wValues = vec4(\n getW(wR, wC, d1, d2),\n getW(wR, wC, d1 + 1, d2),\n getW(wR, wC, d1 + 2, d2),\n getW(wR, wC, d1 + 3, d2)\n );\n\n if ("+p+") {\n vec4 xValues = vec4(\n getX(batch, xR, xC, d1),\n getX(batch, xR, xC, d1 + 1),\n getX(batch, xR, xC, d1 + 2),\n getX(batch, xR, xC, d1 + 3)\n );\n dotProd += dot(xValues, wValues);\n } else {\n vec4 xValues = vec4(\n getX(batch, d1, xR, xC),\n getX(batch, d1 + 1, xR, xC),\n getX(batch, d1 + 2, xR, xC),\n getX(batch, d1 + 3, xR, xC)\n );\n dotProd += dot(xValues, wValues);\n }\n }\n\n if ("+(1===d)+") {\n\n if ("+p+") {\n dotProd +=\n getX(batch, xR, xC, "+f+") *\n getW(wR, wC, "+f+", d2);\n } else {\n dotProd +=\n getX(batch, "+f+", xR, xC) *\n getW(wR, wC, "+f+", d2);\n }\n\n } else if ("+(2===d)+") {\n vec2 wValues = vec2(\n getW(wR, wC, "+f+", d2),\n getW(wR, wC, "+f+" + 1, d2)\n );\n\n if ("+p+") {\n vec2 xValues = vec2(\n getX(batch, xR, xC, "+f+"),\n getX(batch, xR, xC, "+f+" + 1)\n );\n dotProd += dot(xValues, wValues);\n } else {\n vec2 xValues = vec2(\n getX(batch, "+f+", xR, xC),\n getX(batch, "+f+" + 1, xR, xC)\n );\n dotProd += dot(xValues, wValues);\n }\n\n } else if ("+(3===d)+") {\n vec3 wValues = vec3(\n getW(wR, wC, "+f+", d2),\n getW(wR, wC, "+f+" + 1, d2),\n getW(wR, wC, "+f+" + 2, d2)\n );\n\n if ("+p+") {\n vec3 xValues = vec3(\n getX(batch, xR, xC, "+f+"),\n getX(batch, xR, xC, "+f+" + 1),\n getX(batch, xR, xC, "+f+" + 2)\n );\n dotProd += dot(xValues, wValues);\n } else {\n vec3 xValues = vec3(\n getX(batch, "+f+", xR, xC),\n getX(batch, "+f+" + 1, xR, xC),\n getX(batch, "+f+" + 2, xR, xC)\n );\n dotProd += dot(xValues, wValues);\n }\n\n }\n }\n }\n\n float result = dotProd;\n "+b+"\n "+x+"\n setOutput(result);\n }\n "},Ja=function(t){this.variableNames=["x","W"],this.outputShape=t.outShape;var e=t.padInfo.front,n=t.padInfo.top,r=t.padInfo.left,o=t.strideDepth,a=t.strideHeight,i=t.strideWidth,s=t.dilationDepth,u=t.dilationHeight,c=t.dilationWidth,l=t.filterDepth,h=t.filterHeight,f=t.filterWidth,d=4*Math.floor(t.inChannels/4),p=t.inChannels%4;this.userCode="\n const ivec3 strides = ivec3("+o+", "+a+", "+i+");\n const ivec3 pads = ivec3("+e+", "+n+", "+r+");\n\n void main() {\n ivec5 coords = getOutputCoords();\n int batch = coords.x;\n int d2 = coords.u;\n\n ivec3 xFRCCorner = ivec3(coords.y, coords.z, coords.w) * strides - pads;\n int xFCorner = xFRCCorner.x;\n int xRCorner = xFRCCorner.y;\n int xCCorner = xFRCCorner.z;\n\n // Convolve x(?, ?, ?, d1) with w(:, :, :, d1, d2) to get\n // y(yF, yR, yC, d2). ? = to be determined. : = across all\n // values in that axis.\n float dotProd = 0.0;\n for (int wF = 0; wF < "+l+"; wF++) {\n int xF = xFCorner + wF * "+s+";\n\n if (xF < 0 || xF >= "+t.inDepth+") {\n continue;\n }\n\n for (int wR = 0; wR < "+h+"; wR++) {\n int xR = xRCorner + wR * "+u+";\n\n if (xR < 0 || xR >= "+t.inHeight+") {\n continue;\n }\n\n for (int wC = 0; wC < "+f+"; wC++) {\n int xC = xCCorner + wC * "+c+";\n\n if (xC < 0 || xC >= "+t.inWidth+") {\n continue;\n }\n\n for (int d1 = 0; d1 < "+d+"; d1 += 4) {\n vec4 xValues = vec4(\n getX(batch, xF, xR, xC, d1),\n getX(batch, xF, xR, xC, d1 + 1),\n getX(batch, xF, xR, xC, d1 + 2),\n getX(batch, xF, xR, xC, d1 + 3)\n );\n vec4 wValues = vec4(\n getW(wF, wR, wC, d1, d2),\n getW(wF, wR, wC, d1 + 1, d2),\n getW(wF, wR, wC, d1 + 2, d2),\n getW(wF, wR, wC, d1 + 3, d2)\n );\n\n dotProd += dot(xValues, wValues);\n }\n\n if ("+(1===p)+") {\n dotProd +=\n getX(batch, xF, xR, xC, "+d+") *\n getW(wF, wR, wC, "+d+", d2);\n } else if ("+(2===p)+") {\n vec2 xValues = vec2(\n getX(batch, xF, xR, xC, "+d+"),\n getX(batch, xF, xR, xC, "+d+" + 1)\n );\n vec2 wValues = vec2(\n getW(wF, wR, wC, "+d+", d2),\n getW(wF, wR, wC, "+d+" + 1, d2)\n );\n dotProd += dot(xValues, wValues);\n } else if ("+(3===p)+") {\n vec3 xValues = vec3(\n getX(batch, xF, xR, xC, "+d+"),\n getX(batch, xF, xR, xC, "+d+" + 1),\n getX(batch, xF, xR, xC, "+d+" + 2)\n );\n vec3 wValues = vec3(\n getW(wF, wR, wC, "+d+", d2),\n getW(wF, wR, wC, "+d+" + 1, d2),\n getW(wF, wR, wC, "+d+" + 2, d2)\n );\n dotProd += dot(xValues, wValues);\n }\n }\n }\n }\n setOutput(dotProd);\n }\n "},Za=function(t,e,n,r){void 0===e&&(e=!1),void 0===n&&(n=null),void 0===r&&(r=!1),this.variableNames=["x","W"],this.outputShape=t.outShape;var o=t.inHeight,a=t.inWidth,i=t.padInfo.top,s=t.padInfo.left,u=t.strideHeight,c=t.strideWidth,l=t.dilationHeight,h=t.dilationWidth,f=t.filterHeight,d=t.filterWidth,p=t.outChannels/t.inChannels,v="",m="";n&&(v=r?"float activation(float a) {\n float b = getPreluActivationWeightsAtOutCoords();\n "+n+"\n }":"\n float activation(float x) {\n "+n+"\n }\n ",m="result = activation(result);");var g=e?"result += getBiasAtOutCoords();":"";e&&this.variableNames.push("bias"),r&&this.variableNames.push("preluActivationWeights"),this.userCode="\n "+v+"\n\n const ivec2 strides = ivec2("+u+", "+c+");\n const ivec2 pads = ivec2("+i+", "+s+");\n\n void main() {\n ivec4 coords = getOutputCoords();\n int batch = coords.x;\n ivec2 xRCCorner = coords.yz * strides - pads;\n int d2 = coords.w;\n int d1 = d2 / "+p+";\n int q = d2 - d1 * "+p+";\n\n int xRCorner = xRCCorner.x;\n int xCCorner = xRCCorner.y;\n\n // Convolve x(?, ?, d1) with w(:, :, d1, q) to get y(yR, yC, d2).\n // ? = to be determined. : = across all values in that axis.\n float dotProd = 0.0;\n // TO DO(dsmilkov): Flatten the two for loops and vec4 the operations.\n for (int wR = 0; wR < "+f+"; wR++) {\n int xR = xRCorner + wR * "+l+";\n\n if (xR < 0 || xR >= "+o+") {\n continue;\n }\n\n for (int wC = 0; wC < "+d+"; wC++) {\n int xC = xCCorner + wC * "+h+";\n\n if (xC < 0 || xC >= "+a+") {\n continue;\n }\n\n float xVal = getX(batch, xR, xC, d1);\n float wVal = getW(wR, wC, d1, q);\n dotProd += xVal * wVal;\n }\n }\n\n float result = dotProd;\n "+g+"\n "+m+"\n setOutput(result);\n }\n "},ti=function(t,e,n,r){void 0===e&&(e=!1),void 0===n&&(n=null),void 0===r&&(r=!1),this.variableNames=["x","W"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=t.outShape;for(var o=t.inHeight,a=t.inWidth,i=t.padInfo.top,s=t.padInfo.left,u=t.strideHeight,c=t.strideWidth,l=t.dilationHeight,h=t.dilationWidth,f=t.filterHeight,d=t.filterWidth,p=d,v="int xR; int xC; int xCOffset;",m=0;m<f;m++)for(var g=0;g<d;g++)v+="\n vec4 xTexelR"+m+"C"+2*g+" = vec4(0.);\n vec4 wR"+m+"C"+g+" = vec4(0.);\n vec4 xR"+m+"C"+g+" = vec4(0.);";for(m=0;m<f;m++)for(var y=0;y<p;y++){if(v+="\n xR = xRCorner + "+m*l+";\n xC = xCCorner + "+(g=2*y)*h+";\n ",1===c){if(g<d&&(v+=s%2==1?"\n xCOffset = xC + 1;\n if(xR >= 0 && xR < "+o+" && xCOffset >= 0 && xCOffset < "+a+") {\n xTexelR"+m+"C"+g+" = getX(batch, xR, xCOffset, d1);\n\n // Need to manually clear unused channels in case\n // we're reading from recycled texture.\n if(xCOffset + 1 >= "+a+") {\n xTexelR"+m+"C"+g+".zw = vec2(0.);\n }\n } else {\n xTexelR"+m+"C"+g+" = vec4(0.);\n }\n\n xCOffset = xC + 1 - 2;\n if(xR >= 0 && xR < "+o+" && xCOffset >= 0 && xCOffset < "+a+") {\n vec4 previous = getX(batch, xR, xCOffset, d1);\n\n // Need to manually clear unused channels in case\n // we're reading from recycled texture.\n if(xCOffset + 1 >= "+a+") {\n previous.zw = vec2(0.);\n }\n\n xR"+m+"C"+g+" = vec4(previous.zw, xTexelR"+m+"C"+g+".xy);\n } else {\n xR"+m+"C"+g+" = vec4(0, 0, xTexelR"+m+"C"+g+".xy);\n }\n ":"\n if(xR >= 0 && xR < "+o+" && xC >= 0 && xC < "+a+") {\n xTexelR"+m+"C"+g+" = getX(batch, xR, xC, d1);\n } else {\n xTexelR"+m+"C"+g+" = vec4(0.);\n }\n\n xR"+m+"C"+g+" = xTexelR"+m+"C"+g+";\n ",g+1<d)){var x=s%2==0?b(h):h;h%2==0&&s%2==1||h%2!=0&&s%2!=1?(v+="\n xCOffset = xC + "+s%2+" + "+x+";\n\n if(xR >= 0 && xR < "+o+" &&\n xCOffset >= 0 && xCOffset < "+a+") {\n xTexelR"+m+"C"+(g+2)+" = getX(batch, xR, xCOffset, d1);\n }\n ",h>1&&(v+="\n xCOffset -= 2;\n if(xR >= 0 && xR < "+o+" &&\n xCOffset >= 0 && xCOffset < "+a+") {\n xTexelR"+m+"C"+g+" = getX(batch, xR, xCOffset, d1);\n } else {\n xTexelR"+m+"C"+g+" = vec4(0.);\n }\n "),v+="\n xR"+m+"C"+(g+1)+" = vec4(\n xTexelR"+m+"C"+g+".zw, xTexelR"+m+"C"+(g+2)+".xy);\n "):v+="\n xCOffset = xC + "+x+";\n\n if(xR >= 0 && xR < "+o+" &&\n xCOffset >= 0 && xCOffset < "+a+") {\n xTexelR"+m+"C"+(g+2)+" = getX(batch, xR, xCOffset, d1);\n }\n\n xR"+m+"C"+(g+1)+" = xTexelR"+m+"C"+(g+2)+";\n "}}else g<d&&(v+="\n if(xR >= 0 && xR < "+o+") {\n ",s%2==1?(v+="\n xCOffset = xC + 1 - "+c+";\n if(xCOffset >= 0 && xCOffset < "+a+") {\n xTexelR"+m+"C"+g+" = getX(batch, xR, xCOffset, d1);\n } else {\n xTexelR"+m+"C"+g+" = vec4(0.);\n }\n\n if(xC + 1 >= 0 && xC + 1 < "+a+") {\n xTexelR"+m+"C"+(g+2)+" = getX(batch, xR, xC + 1, d1);\n } else {\n xTexelR"+m+"C"+(g+2)+" = vec4(0.);\n }\n\n xR"+m+"C"+g+" = vec4(\n xTexelR"+m+"C"+g+".zw, xTexelR"+m+"C"+(g+2)+".zw);\n ",g+1<d&&(v+="\n vec4 final = vec4(0.);\n xCOffset = xC + 1 + "+c+";\n if(xCOffset >= 0 && xCOffset < "+a+") {\n final = getX(batch, xR, xCOffset, d1);\n }\n xR"+m+"C"+(g+1)+" = vec4(xTexelR"+m+"C"+(g+2)+".xy, final.xy);\n ")):(v+="\n if(xC >= 0 && xC < "+a+") {\n xTexelR"+m+"C"+g+" = getX(batch, xR, xC, d1);\n } else {\n xTexelR"+m+"C"+g+" = vec4(0.);\n }\n\n xCOffset = xC + "+c+";\n if(xCOffset >= 0 && xCOffset < "+a+") {\n xTexelR"+m+"C"+(g+2)+" = getX(batch, xR, xCOffset, d1);\n } else {\n xTexelR"+m+"C"+(g+2)+" = vec4(0.);\n }\n\n xR"+m+"C"+g+" = vec4(\n xTexelR"+m+"C"+g+".xy, xTexelR"+m+"C"+(g+2)+".xy);\n ",g+1<d&&(v+="\n xR"+m+"C"+(g+1)+" = vec4(\n xTexelR"+m+"C"+g+".zw, xTexelR"+m+"C"+(g+2)+".zw);\n ")),v+="}");g<d&&(v+="\n vec4 wTexelR"+m+"C"+g+" = getW("+m+", "+g+", d1, q);\n wR"+m+"C"+g+" = vec4(wTexelR"+m+"C"+g+".xz, wTexelR"+m+"C"+g+".xz);\n ",g+1<d&&(v+="\n vec4 wTexelR"+m+"C"+(g+1)+" = getW("+m+", "+(g+1)+", d1, q);\n wR"+m+"C"+(g+1)+" =\n vec4(wTexelR"+m+"C"+(g+1)+".xz, wTexelR"+m+"C"+(g+1)+".xz);"))}for(m=0;m<f;m++)for(g=0;g<d;g++)v+="dotProd += xR"+m+"C"+g+" * wR"+m+"C"+g+";";var w="",C="";n&&(w=r?"vec4 activation(vec4 a) {\n vec4 b = getPreluActivationWeightsAtOutCoords();\n "+n+"\n }":"vec4 activation(vec4 x) {\n "+n+"\n }",C="result = activation(result);");var E=e?"result += getBiasAtOutCoords();":"";e&&this.variableNames.push("bias"),r&&this.variableNames.push("preluActivationWeights"),this.userCode="\n "+w+"\n\n const ivec2 strides = ivec2("+u+", "+c+");\n const ivec2 pads = ivec2("+i+", "+s+");\n\n void main() {\n\n ivec4 coords = getOutputCoords();\n int batch = coords.x;\n ivec2 xRCCorner = coords.yz * strides - pads;\n int d2 = coords.w;\n int d1 = d2;\n int q = 0;\n int xRCorner = xRCCorner.x;\n int xCCorner = xRCCorner.y;\n\n vec4 dotProd = vec4(0.);\n\n "+v+"\n\n vec4 result = dotProd;\n "+E+"\n "+C+"\n setOutput(result);\n }\n "},ei=function(t,e,n,r,o){this.variableNames=["Image","Boxes","BoxInd"],this.outputShape=[];var a=t[0],i=t[1],s=t[2],u=t[3],c=e[0],l=n[0],h=n[1];this.outputShape=[c,l,h,u];var f="bilinear"===r?1:0,d=[i-1+".0",s-1+".0"],p=d[0],v=d[1],m=l>1?[""+(i-1)/(l-1),"(y2-y1) * height_ratio","y1*"+p+" + float(y)*(height_scale)"]:["0.0","0.0","0.5 * (y1+y2) * "+p],g=m[0],y=m[1],x=m[2],b=h>1?[""+(s-1)/(h-1),"(x2-x1) * width_ratio","x1*"+v+" + float(x)*(width_scale)"]:["0.0","0.0","0.5 * (x1+x2) * "+v],w=b[0],C=b[1],E=b[2];this.userCode="\n const float height_ratio = float("+g+");\n const float width_ratio = float("+w+");\n void main() {\n ivec4 coords = getOutputCoords();\n int b = coords[0];\n int y = coords[1];\n int x = coords[2];\n int d = coords[3];\n\n // get box vals\n float y1 = getBoxes(b,0);\n float x1 = getBoxes(b,1);\n float y2 = getBoxes(b,2);\n float x2 = getBoxes(b,3);\n\n // get image in batch index\n int bInd = round(getBoxInd(b));\n if(bInd < 0 || bInd >= "+a+") {\n return;\n }\n\n float height_scale = "+y+";\n float width_scale = "+C+";\n\n float in_y = "+x+";\n if( in_y < 0.0 || in_y > "+p+" ) {\n setOutput(float("+o+"));\n return;\n }\n float in_x = "+E+";\n if( in_x < 0.0 || in_x > "+v+" ) {\n setOutput(float("+o+"));\n return;\n }\n\n vec2 sourceFracIndexCR = vec2(in_x,in_y);\n if("+f+" == 1) {\n // Compute the four integer indices.\n ivec2 sourceFloorCR = ivec2(sourceFracIndexCR);\n ivec2 sourceCeilCR = ivec2(ceil(sourceFracIndexCR));\n\n float topLeft = getImage(b, sourceFloorCR.y, sourceFloorCR.x, d);\n float bottomLeft = getImage(b, sourceCeilCR.y, sourceFloorCR.x, d);\n float topRight = getImage(b, sourceFloorCR.y, sourceCeilCR.x, d);\n float bottomRight = getImage(b, sourceCeilCR.y, sourceCeilCR.x, d);\n\n vec2 fracCR = sourceFracIndexCR - vec2(sourceFloorCR);\n\n float top = topLeft + (topRight - topLeft) * fracCR.x;\n float bottom = bottomLeft + (bottomRight - bottomLeft) * fracCR.x;\n float newValue = top + (bottom - top) * fracCR.y;\n setOutput(newValue);\n } else {\n // Compute the coordinators of nearest neighbor point.\n ivec2 sourceNearestCR = ivec2(floor(\n sourceFracIndexCR + vec2(0.5,0.5)));\n float newValue = getImage(b, sourceNearestCR.y, sourceNearestCR.x, d);\n setOutput(newValue);\n }\n }\n "},ni=function(t,e,n){this.variableNames=["x"],this.outputShape=t;var r=t.length,o=t[t.length-1],a=n?"<":">";this.userCode="\n int getIndex(int i) {\n "+(n?"return "+o+" -i - 1;":"return i;")+"\n }\n\n void main() {\n "+wa(r)+" coords = getOutputCoords();\n int end = "+ri(r,"coords")+";\n float val = 0.0;\n for (int i = "+o+" - 1; i >= 0; i -= 1) {\n int idx = getIndex(i);\n if (idx "+a+" end) {\n continue;\n }\n if (idx == end && "+e+") {\n continue;\n }\n "+ri(r,"coords")+" = idx;\n val += getX("+function(t,e){if(1===t)return""+e;if(2===t)return e+".x, "+e+".y";if(3===t)return e+".x, "+e+".y, "+e+".z";if(4===t)return e+".x, "+e+".y, "+e+".z, "+e+".w";throw Error("Cumulative sum for rank "+t+" is not yet supported")}(r,"coords")+");\n }\n setOutput(val);\n }\n "};function ri(t,e){if(1===t)return""+e;if(2===t)return e+".y";if(3===t)return e+".z";if(4===t)return e+".w";throw Error("Cumulative sum for rank "+t+" is not yet supported")}var oi=function(t){this.variableNames=["A"],this.packedInputs=!1,this.packedOutput=!0,this.outPackingScheme=Vt.DENSE;var e=Yt(t),n=ua();this.outputShape=t,this.userCode="\n ivec3 outCoordsFromFlatIndex(int index) {\n "+ca(["r","c","d"],t)+"\n return ivec3(r, c, d);\n }\n\n void main() {\n ivec2 resTexRC = ivec2(resultUV.yx *\n vec2("+e[0]+", "+e[1]+"));\n int index = 4 * (resTexRC.x * "+e[1]+" + resTexRC.y);\n\n vec4 result = vec4(0.);\n\n for (int i=0; i<4; i++) {\n int flatIndex = index + i;\n ivec3 rc = outCoordsFromFlatIndex(flatIndex);\n result[i] = getA(rc.x, rc.y, rc.z);\n }\n\n "+n.output+" = result;\n }\n "},ai=function(t){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!0,this.outPackingScheme=Vt.DENSE;var e=Yt(t),n=ua();this.outputShape=t,this.userCode="\n ivec3 outCoordsFromFlatIndex(int index) {\n "+ca(["r","c","d"],t)+"\n return ivec3(r, c, d);\n }\n\n void main() {\n ivec2 resTexRC = ivec2(resultUV.yx *\n vec2("+e[0]+", "+e[1]+"));\n int index = 4 * (resTexRC.x * "+e[1]+" + resTexRC.y);\n\n vec4 result = vec4(0.);\n\n for (int i=0; i<4; i++) {\n int flatIndex = index + i;\n ivec3 rc = outCoordsFromFlatIndex(flatIndex);\n result[i] = getChannel(getA(rc.x, rc.y, rc.z), vec2(rc.y, rc.z));\n }\n\n "+n.output+" = result;\n }\n "},ii=function(){function t(t,e,n){this.variableNames=["x"],this.outputShape=[],this.outputShape=t,this.blockSize=e,this.dataFormat=n,this.userCode="\n void main() {\n ivec4 coords = getOutputCoords();\n int b = coords[0];\n int h = "+this.getHeightCoordString()+";\n int w = "+this.getWidthCoordString()+";\n int d = "+this.getDepthCoordString()+";\n\n int in_h = h / "+e+";\n int offset_h = imod(h, "+e+");\n int in_w = w / "+e+";\n int offset_w = imod(w, "+e+");\n int offset_d = (offset_h * "+e+" + offset_w) *\n "+this.getOutputDepthSize()+";\n int in_d = d + offset_d;\n\n float result = "+this.getInputSamplingString()+";\n setOutput(result);\n }\n "}return t.prototype.getHeightCoordString=function(){return"NHWC"===this.dataFormat?"coords[1]":"coords[2]"},t.prototype.getWidthCoordString=function(){return"NHWC"===this.dataFormat?"coords[2]":"coords[3]"},t.prototype.getDepthCoordString=function(){return"NHWC"===this.dataFormat?"coords[3]":"coords[1]"},t.prototype.getOutputDepthSize=function(){return"NHWC"===this.dataFormat?this.outputShape[3]:this.outputShape[1]},t.prototype.getInputSamplingString=function(){return"NHWC"===this.dataFormat?"getX(b, in_h, in_w, in_d)":"getX(b, in_d, in_h, in_w)"},t}(),si=function(t){this.variableNames=["X"],this.outputShape=[t,t],this.userCode="\n void main() {\n ivec2 coords = getOutputCoords();\n float val = coords[0] == coords[1] ? getX(coords[0]) : 0.0;\n setOutput(val);\n }\n "},ui=function(t){this.variableNames=["A"],this.outTexUsage=zt.DOWNLOAD;var e=ua();this.outputShape=t,this.userCode="\n "+ha+"\n\n void main() {\n float x = getAAtOutCoords();\n "+e.output+" = encode_float(x);\n }\n "},ci=function(t){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!1,this.outTexUsage=zt.DOWNLOAD;var e=ua();this.outputShape=t,this.userCode="\n "+ha+"\n\n void main() {\n ivec3 coords = getOutputCoords();\n float x = getChannel(getAAtOutCoords(), vec2(coords.y, coords.z));\n "+e.output+" = encode_float(x);\n }\n "},li=function(t,e,n){void 0===n&&(n=!1),this.variableNames=["A"];var r=ua(),o=e[0],a=e[1];this.outputShape=t;var i="result";n&&(i="floor(result * 255. + 0.5)"),this.userCode="\n "+la(t)+"\n\n void main() {\n ivec3 coords = getOutputCoords();\n\n int flatIndex = getFlatIndex(coords);\n int offset = imod(flatIndex, 4);\n\n flatIndex = idiv(flatIndex, 4, 1.);\n \n int r = flatIndex / "+a+";\n int c = imod(flatIndex, "+a+");\n vec2 uv = (vec2(c, r) + halfCR) / vec2("+a+".0, "+o+".0);\n vec4 values = "+r.texture2D+"(A, uv);\n\n float result;\n\n if(offset == 0) {\n result = values[0];\n } else if(offset == 1) {\n result = values[1];\n } else if(offset == 2) {\n result = values[2];\n } else {\n result = values[3];\n }\n\n "+r.output+" = vec4("+i+", 0., 0., 0.);\n }\n "},hi=function(t,e,n){void 0===n&&(n=!1),this.variableNames=["A"],this.packedInputs=!1,this.packedOutput=!0;var r=ua(),o=e[0],a=e[1];this.outputShape=t;var i="",s="result";n&&(s="floor(result * 255. + 0.5)");for(var u=0;u<=1;u++)for(var c=0;c<=1;c++){var l=2*u+c;i+="\n localCoords = coords;\n if(localCoords[2] + "+c+" < "+t[2]+") {\n localCoords[2] += "+c+";\n if(localCoords[1] + "+u+" < "+t[1]+") {\n localCoords[1] += "+u+";\n\n flatIndex = getFlatIndex(localCoords);\n offset = imod(flatIndex, 4);\n\n flatIndex = idiv(flatIndex, 4, 1.);\n\n r = flatIndex / "+a+";\n c = imod(flatIndex, "+a+");\n uv = (vec2(c, r) + halfCR) / vec2("+a+".0, "+o+".0);\n values = "+r.texture2D+"(A, uv);\n\n if(offset == 0) {\n result["+l+"] = values[0];\n } else if(offset == 1) {\n result["+l+"] = values[1];\n } else if(offset == 2) {\n result["+l+"] = values[2];\n } else {\n result["+l+"] = values[3];\n }\n }\n }\n "}this.userCode="\n "+la(t)+"\n\n void main() {\n ivec3 coords = getOutputCoords();\n\n vec4 result = vec4(0.);\n int flatIndex, r, c, offset;\n ivec3 localCoords;\n vec2 uv;\n vec4 values;\n\n "+i+"\n\n "+r.output+" = "+s+";\n }\n "},fi="return real * expR - imag * expI;",di="return real * expI + imag * expR;",pi=function(t,e,n){this.variableNames=["real","imag"];var r=e[1];this.outputShape=e;var o=n?"2.0 * "+Math.PI:"-2.0 * "+Math.PI,a=n?r+".0":"1.0";this.userCode="\n const float exponentMultiplier = "+o+";\n\n float unaryOpComplex(float real, float expR, float imag, float expI) {\n "+t+"\n }\n\n float mulMatDFT(int batch, int index) {\n float indexRatio = float(index) / float("+r+");\n float exponentMultiplierTimesIndexRatio =\n exponentMultiplier * indexRatio;\n\n float result = 0.0;\n\n for (int i = 0; i < "+r+"; i++) {\n // x = (-2|2 * PI / N) * index * i;\n float x = exponentMultiplierTimesIndexRatio * float(i);\n float expR = cos(x);\n float expI = sin(x);\n float real = getReal(batch, i);\n float imag = getImag(batch, i);\n\n result +=\n unaryOpComplex(real, expR, imag, expI) / "+a+";\n }\n\n return result;\n }\n\n void main() {\n ivec2 coords = getOutputCoords();\n setOutput(mulMatDFT(coords[0], coords[1]));\n }\n "},vi=function(){function t(t,e){this.outputShape=[],this.variableNames=["x"],this.outputShape=t,this.userCode="\n uniform float value;\n void main() {\n // Input can be obtained from uniform value.\n setOutput(value);\n }\n "}return t.prototype.getCustomSetupFunc=function(t){var e=this;return function(n,r){null==e.valueLoc&&(e.valueLoc=n.getUniformLocationNoThrow(r,"value")),n.gl.uniform1f(e.valueLoc,t)}},t}(),mi=function(t,e,n){this.variableNames=["A","indices"];var r=t.slice();r[n]=e,this.outputShape=r,this.rank=r.length;var o=wa(this.rank),a=function(t,e){var n=t.length;if(n>4)throw Error("Gather for rank "+n+" is not yet supported");if(1===n)return"int(getIndices(resRC))";for(var r=["resRC.x","resRC.y","resRC.z","resRC.w"],o=[],a=0;a<t.length;a++)a===e?o.push("int(getIndices("+r[a]+"))"):o.push(""+r[a]);return o.join()}(t,n);this.userCode="\n void main() {\n "+o+" resRC = getOutputCoords();\n setOutput(getA("+a+"));\n }\n "};var gi=function(t,e,n){this.sliceDim=t,this.strides=e,this.variableNames=["x","indices"],this.outputShape=n;var r=wa(e.length),o=wa(n.length),a=this.sliceDim>1?"strides[j]":"strides";this.userCode="\n "+r+" strides = "+r+"("+this.strides+");\n void main() {\n "+o+" coords = getOutputCoords();\n int flattenIndex = 0;\n for (int j = 0; j < "+this.sliceDim+"; j++) {\n int index = round(getIndices(coords[0], j));\n flattenIndex += index * "+a+";\n }\n setOutput(getX(flattenIndex, coords[1]));\n }\n "};function yi(t,e){var n=ua();return oe(t,e,n.version+"\n precision highp float;\n "+n.attribute+" vec3 clipSpacePos;\n "+n.attribute+" vec2 uv;\n "+n.varyingVs+" vec2 resultUV;\n\n void main() {\n gl_Position = vec4(clipSpacePos, 1);\n resultUV = uv;\n }")}function xi(t,e){return fe(t,e,new Float32Array([-1,1,0,0,1,-1,-1,0,0,0,1,1,0,1,1,1,-1,0,1,0]))}function bi(t,e){return de(t,e,new Uint16Array([0,1,2,2,1,3]))}function wi(t,e,n,r,o,a,i){ve(n,r);var s=pe(t,e),u=t.TEXTURE_2D;return Jt(t,e,(function(){return t.bindTexture(u,s)})),Jt(t,e,(function(){return t.texParameteri(u,t.TEXTURE_WRAP_S,t.CLAMP_TO_EDGE)})),Jt(t,e,(function(){return t.texParameteri(u,t.TEXTURE_WRAP_T,t.CLAMP_TO_EDGE)})),Jt(t,e,(function(){return t.texParameteri(u,t.TEXTURE_MIN_FILTER,t.NEAREST)})),Jt(t,e,(function(){return t.texParameteri(u,t.TEXTURE_MAG_FILTER,t.NEAREST)})),Jt(t,e,(function(){return t.texImage2D(u,0,o,n,r,0,a,i,null)})),Jt(t,e,(function(){return t.bindTexture(t.TEXTURE_2D,null)})),s}function Ci(t,e,n,r,o){var a=Xt(n,r);return wi(t,e,a[0],a[1],o.internalFormatFloat,o.textureFormatFloat,t.FLOAT)}function Ei(t,e,n,r,o){var a=Xt(n,r);return wi(t,e,a[0],a[1],o.internalFormatHalfFloat,o.textureFormatFloat,o.textureTypeHalfFloat)}function Ri(t,e,n,r,o){var a=Xt(n,r);return wi(t,e,a[0],a[1],t.RGBA,t.RGBA,t.UNSIGNED_BYTE)}function Ii(t,e,n,r,o){var a=$t(n,r);return wi(t,e,a[0],a[1],o.internalFormatPackedFloat,t.RGBA,t.FLOAT)}function ki(t,e,n,r,o){var a=$t(n,r);return wi(t,e,a[0],a[1],o.internalFormatPackedHalfFloat,t.RGBA,o.textureTypeHalfFloat)}function Si(t,e,n,r){return Jt(t,e,(function(){return t.bindBuffer(t.ARRAY_BUFFER,r)})),ge(t,e,n,"clipSpacePos",r,3,20,0)&&ge(t,e,n,"uv",r,2,20,12)}function Ai(t,e,n,r,o,a,i){var s,u,c;Jt(t,e,(function(){return t.bindTexture(t.TEXTURE_2D,n)})),a instanceof Uint8Array?(s=new Uint8Array(r*o*4),u=t.UNSIGNED_BYTE,c=t.RGBA):(s=new Float32Array(r*o*4),u=t.FLOAT,c=i.internalFormatPackedFloat),s.set(a),Jt(t,e,(function(){return t.texImage2D(t.TEXTURE_2D,0,c,r,o,0,t.RGBA,u,s)})),Jt(t,e,(function(){return t.bindTexture(t.TEXTURE_2D,null)}))}function Di(t,e,n,r){Jt(t,e,(function(){return t.bindTexture(t.TEXTURE_2D,n)})),r.data instanceof Uint8Array?Jt(t,e,(function(){return t.texImage2D(t.TEXTURE_2D,0,t.RGBA,r.width,r.height,0,t.RGBA,t.UNSIGNED_BYTE,r.data)})):Jt(t,e,(function(){return t.texImage2D(t.TEXTURE_2D,0,t.RGBA,t.RGBA,t.UNSIGNED_BYTE,r)})),Jt(t,e,(function(){return t.bindTexture(t.TEXTURE_2D,null)}))}function Ti(t,e,n,r,o){var a=t.createBuffer();Jt(t,e,(function(){return t.bindBuffer(t.PIXEL_PACK_BUFFER,a)}));var i=16*n*r;return Jt(t,e,(function(){return t.bufferData(t.PIXEL_PACK_BUFFER,i,t.STREAM_READ)})),Jt(t,e,(function(){return t.readPixels(0,0,r,n,t.RGBA,t.FLOAT,0)})),Jt(t,e,(function(){return t.bindBuffer(t.PIXEL_PACK_BUFFER,null)})),a}function Ni(t,e,n){var r=t,o=new Float32Array(n);return r.bindBuffer(r.PIXEL_PACK_BUFFER,e),r.getBufferSubData(r.PIXEL_PACK_BUFFER,0,o),r.bindBuffer(r.PIXEL_PACK_BUFFER,null),o}function Fi(t,e,n,r,o){var a=Xt(n,r),i=a[0],s=a[1],u=new Uint8Array(n*r*4);return Jt(t,e,(function(){return t.readPixels(0,0,i,s,o.downloadTextureFormat,t.UNSIGNED_BYTE,u)})),new Float32Array(u.buffer)}function _i(t,e,n,r,o,a,i,s){var u=t,c=new Float32Array(function(t,e){var n=$t(t,e);return n[0]*n[1]*4}(a,i));return u.bindBuffer(u.PIXEL_PACK_BUFFER,e),u.getBufferSubData(u.PIXEL_PACK_BUFFER,0,c),u.bindBuffer(u.PIXEL_PACK_BUFFER,null),c}function Oi(t,e,n,r){var o=new Float32Array(n*r*4);return Jt(t,e,(function(){return t.readPixels(0,0,r,n,t.RGBA,t.FLOAT,o)})),o}var Mi=Object.freeze({createVertexShader:yi,createVertexBuffer:xi,createIndexBuffer:bi,createFloat32MatrixTexture:Ci,createFloat16MatrixTexture:Ei,createUnsignedBytesMatrixTexture:Ri,createPackedMatrixTexture:Ii,createFloat16PackedMatrixTexture:ki,bindVertexProgramAttributeStreams:Si,uploadDenseMatrixToTexture:Ai,uploadPixelDataToTexture:Di,createBufferFromOutputTexture:Ti,downloadFloat32MatrixFromBuffer:Ni,downloadByteEncodedFloatMatrixFromOutputTexture:Fi,downloadPackedMatrixFromBuffer:_i,downloadMatrixFromPackedOutputTexture:Oi}),Bi=function(){function t(t){this.outputTexture=null,this.program=null,this.disposed=!1,this.vertexAttrsAreBound=!1,this.itemsToPoll=[];var e=i().getNumber("WEBGL_VERSION");null!=t?(this.gl=t,Kt(e,t)):this.gl=jt(e);var n="WEBGL_color_buffer_float";if(1===i().getNumber("WEBGL_VERSION")){if(this.textureFloatExtension=re(this.gl,this.debug,"OES_texture_float"),Pe(this.gl,"OES_texture_half_float"))this.textureHalfFloatExtension=re(this.gl,this.debug,"OES_texture_half_float");else if(i().get("WEBGL_FORCE_F16_TEXTURES"))throw new Error("GL context does not support half float textures, yet the environment flag WEBGL_FORCE_F16_TEXTURES is set to true.");if(this.colorBufferFloatExtension=this.gl.getExtension(n),Pe(this.gl,"EXT_color_buffer_half_float"))this.colorBufferHalfFloatExtension=re(this.gl,this.debug,"EXT_color_buffer_half_float");else if(i().get("WEBGL_FORCE_F16_TEXTURES"))throw new Error("GL context does not support color renderable half floats, yet the environment flag WEBGL_FORCE_F16_TEXTURES is set to true.")}else if(n="EXT_color_buffer_float",Pe(this.gl,n))this.colorBufferFloatExtension=this.gl.getExtension(n);else{if(!Pe(this.gl,"EXT_color_buffer_half_float"))throw new Error("GL context does not support color renderable floats");this.colorBufferHalfFloatExtension=this.gl.getExtension("EXT_color_buffer_half_float")}this.vertexBuffer=xi(this.gl,this.debug),this.indexBuffer=bi(this.gl,this.debug),this.framebuffer=me(this.gl,this.debug),this.textureConfig=Qt(this.gl,this.textureHalfFloatExtension)}return Object.defineProperty(t.prototype,"debug",{get:function(){return i().getBool("DEBUG")},enumerable:!0,configurable:!0}),t.prototype.dispose=function(){var t=this;if(!this.disposed){null!=this.program&&console.warn("Disposing a GPGPUContext that still has a bound WebGLProgram. This is probably a resource leak, delete the program with GPGPUContext.deleteProgram before disposing."),null!=this.outputTexture&&console.warn("Disposing a GPGPUContext that still has a bound output matrix texture. This is probably a resource leak, delete the output matrix texture with GPGPUContext.deleteMatrixTexture before disposing.");var e=this.gl;Jt(e,this.debug,(function(){return e.finish()})),Jt(e,this.debug,(function(){return e.bindFramebuffer(e.FRAMEBUFFER,null)})),Jt(e,this.debug,(function(){return e.deleteFramebuffer(t.framebuffer)})),Jt(e,this.debug,(function(){return e.bindBuffer(e.ARRAY_BUFFER,null)})),Jt(e,this.debug,(function(){return e.bindBuffer(e.ELEMENT_ARRAY_BUFFER,null)})),Jt(e,this.debug,(function(){return e.deleteBuffer(t.indexBuffer)})),this.disposed=!0}},t.prototype.createFloat32MatrixTexture=function(t,e){return this.throwIfDisposed(),Ci(this.gl,this.debug,t,e,this.textureConfig)},t.prototype.createFloat16MatrixTexture=function(t,e){return this.throwIfDisposed(),Ei(this.gl,this.debug,t,e,this.textureConfig)},t.prototype.createUnsignedBytesMatrixTexture=function(t,e){return this.throwIfDisposed(),Ri(this.gl,this.debug,t,e,this.textureConfig)},t.prototype.uploadPixelDataToTexture=function(t,e){this.throwIfDisposed(),Di(this.gl,this.debug,t,e)},t.prototype.uploadDenseMatrixToTexture=function(t,e,n,r){this.throwIfDisposed(),Ai(this.gl,this.debug,t,e,n,r,this.textureConfig)},t.prototype.createFloat16PackedMatrixTexture=function(t,e){return this.throwIfDisposed(),ki(this.gl,this.debug,t,e,this.textureConfig)},t.prototype.createPackedMatrixTexture=function(t,e){return this.throwIfDisposed(),Ii(this.gl,this.debug,t,e,this.textureConfig)},t.prototype.deleteMatrixTexture=function(t){var e=this;this.throwIfDisposed(),this.outputTexture===t&&(Ee(this.gl,this.debug,this.framebuffer),this.outputTexture=null),Jt(this.gl,this.debug,(function(){return e.gl.deleteTexture(t)}))},t.prototype.downloadByteEncodedFloatMatrixFromOutputTexture=function(t,e,n){var r=this;return this.downloadMatrixDriver(t,(function(){return Fi(r.gl,r.debug,e,n,r.textureConfig)}))},t.prototype.downloadPackedMatrixFromBuffer=function(t,e,n,r,o,a){return _i(this.gl,t,0,0,0,o,a,this.textureConfig)},t.prototype.downloadFloat32MatrixFromBuffer=function(t,e){return Ni(this.gl,t,e)},t.prototype.createBufferFromTexture=function(t,e,n){this.bindTextureToFrameBuffer(t);var r=Ti(this.gl,this.debug,e,n,this.textureConfig);return this.unbindTextureToFrameBuffer(),r},t.prototype.createAndWaitForFence=function(){var t=this.createFence(this.gl);return this.pollFence(t)},t.prototype.createFence=function(t){var e,n,r=this;if(i().getBool("WEBGL_FENCE_API_ENABLED")){var o=t,a=o.fenceSync(o.SYNC_GPU_COMMANDS_COMPLETE,0);t.flush(),n=function(){var t=o.clientWaitSync(a,0,0);return t===o.ALREADY_SIGNALED||t===o.CONDITION_SATISFIED},e=a}else i().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION")>0?(e=this.beginQuery(),this.endQuery(),n=function(){return r.isQueryAvailable(e,i().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION"))}):n=function(){return!0};return{query:e,isFencePassed:n}},t.prototype.downloadMatrixFromPackedTexture=function(t,e,n){var r=this;return this.downloadMatrixDriver(t,(function(){return Oi(r.gl,r.debug,e,n)}))},t.prototype.createProgram=function(t){this.throwIfDisposed();var e=this.gl,n=ae(e,this.debug,t),r=yi(e,this.debug),o=ce(e,this.debug);return Jt(e,this.debug,(function(){return e.attachShader(o,r)})),Jt(e,this.debug,(function(){return e.attachShader(o,n)})),le(e,this.debug,o),this.debug&&he(e,this.debug,o),this.vertexAttrsAreBound||(this.setProgram(o),this.vertexAttrsAreBound=Si(e,this.debug,this.program,this.vertexBuffer)),o},t.prototype.deleteProgram=function(t){var e=this;this.throwIfDisposed(),t===this.program&&(this.program=null),null!=t&&Jt(this.gl,this.debug,(function(){return e.gl.deleteProgram(t)}))},t.prototype.setProgram=function(t){var e=this;this.throwIfDisposed(),this.program=t,null!=this.program&&this.debug&&he(this.gl,this.debug,this.program),Jt(this.gl,this.debug,(function(){return e.gl.useProgram(t)}))},t.prototype.getUniformLocation=function(t,e,n){return void 0===n&&(n=!0),this.throwIfDisposed(),n?xe(this.gl,this.debug,t,e):be(this.gl,t,e)},t.prototype.getAttributeLocation=function(t,e){var n=this;return this.throwIfDisposed(),Jt(this.gl,this.debug,(function(){return n.gl.getAttribLocation(t,e)}))},t.prototype.getUniformLocationNoThrow=function(t,e){return this.throwIfDisposed(),this.gl.getUniformLocation(t,e)},t.prototype.setInputMatrixTexture=function(t,e,n){this.throwIfDisposed(),this.throwIfNoProgram(),we(this.gl,this.debug,this.program,t,e,n)},t.prototype.setOutputMatrixTexture=function(t,e,n){this.setOutputMatrixTextureDriver(t,n,e)},t.prototype.setOutputPackedMatrixTexture=function(t,e,n){this.throwIfDisposed();var r=$t(e,n),o=r[0],a=r[1];this.setOutputMatrixTextureDriver(t,o,a)},t.prototype.setOutputMatrixWriteRegion=function(t,e,n,r){this.setOutputMatrixWriteRegionDriver(n,t,r,e)},t.prototype.setOutputPackedMatrixWriteRegion=function(t,e,n,r){throw new Error("setOutputPackedMatrixWriteRegion not implemented.")},t.prototype.debugValidate=function(){null!=this.program&&he(this.gl,this.debug,this.program),Re(this.gl)},t.prototype.executeProgram=function(){this.throwIfDisposed(),this.throwIfNoProgram();var t=this.gl;this.debug&&this.debugValidate(),Jt(t,this.debug,(function(){return t.drawElements(t.TRIANGLES,6,t.UNSIGNED_SHORT,0)}))},t.prototype.blockUntilAllProgramsCompleted=function(){var t=this;this.throwIfDisposed(),Jt(this.gl,this.debug,(function(){return t.gl.finish()}))},t.prototype.getQueryTimerExtension=function(){return null==this.disjointQueryTimerExtension&&(this.disjointQueryTimerExtension=re(this.gl,this.debug,2===i().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION")?"EXT_disjoint_timer_query_webgl2":"EXT_disjoint_timer_query")),this.disjointQueryTimerExtension},t.prototype.getQueryTimerExtensionWebGL2=function(){return this.getQueryTimerExtension()},t.prototype.getQueryTimerExtensionWebGL1=function(){return this.getQueryTimerExtension()},t.prototype.beginQuery=function(){if(2===i().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION")){var t=this.gl,e=this.getQueryTimerExtensionWebGL2(),n=t.createQuery();return t.beginQuery(e.TIME_ELAPSED_EXT,n),n}var r=this.getQueryTimerExtensionWebGL1(),o=r.createQueryEXT();return r.beginQueryEXT(r.TIME_ELAPSED_EXT,o),o},t.prototype.endQuery=function(){if(2!==i().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION")){var t=this.getQueryTimerExtensionWebGL1();t.endQueryEXT(t.TIME_ELAPSED_EXT)}else{var e=this.gl,n=this.getQueryTimerExtensionWebGL2();e.endQuery(n.TIME_ELAPSED_EXT)}},t.prototype.waitForQueryAndGetTime=function(t){return n(this,void 0,void 0,(function(){var e=this;return r(this,(function(n){switch(n.label){case 0:return[4,F((function(){return e.disposed||e.isQueryAvailable(t,i().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION"))}))];case 1:return n.sent(),[2,this.getQueryTime(t,i().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION"))]}}))}))},t.prototype.getQueryTime=function(t,e){if(0===e)return null;if(2===e){var n=this.gl;return n.getQueryParameter(t,n.QUERY_RESULT)/1e6}var r=this.getQueryTimerExtensionWebGL1();return r.getQueryObjectEXT(t,r.QUERY_RESULT_EXT)/1e6},t.prototype.isQueryAvailable=function(t,e){if(0===e)return!0;if(2===e){var n=this.gl,r=this.getQueryTimerExtensionWebGL2(),o=n.getQueryParameter(t,n.QUERY_RESULT_AVAILABLE);return null==this.disjoint&&(this.disjoint=this.gl.getParameter(r.GPU_DISJOINT_EXT)),o&&!this.disjoint}o=(r=this.getQueryTimerExtensionWebGL1()).getQueryObjectEXT(t,r.QUERY_RESULT_AVAILABLE_EXT);return null==this.disjoint&&(this.disjoint=this.gl.getParameter(r.GPU_DISJOINT_EXT)),o&&!this.disjoint},t.prototype.pollFence=function(t){var e=this;return new Promise((function(n){e.addItemToPoll((function(){return t.isFencePassed()}),(function(){return n()}))}))},t.prototype.pollItems=function(){for(var t=function(t){for(var e=0;e<t.length;++e){if(!t[e]())break}return e-1}(this.itemsToPoll.map((function(t){return t.isDoneFn}))),e=0;e<=t;++e){(0,this.itemsToPoll[e].resolveFn)()}this.itemsToPoll=this.itemsToPoll.slice(t+1)},t.prototype.addItemToPoll=function(t,e){var n=this;this.itemsToPoll.push({isDoneFn:t,resolveFn:e}),this.itemsToPoll.length>1||F((function(){return n.pollItems(),0===n.itemsToPoll.length}))},t.prototype.bindTextureToFrameBuffer=function(t){this.throwIfDisposed(),Ce(this.gl,this.debug,t,this.framebuffer),this.debug&&Re(this.gl)},t.prototype.unbindTextureToFrameBuffer=function(){null!=this.outputTexture?(Ce(this.gl,this.debug,this.outputTexture,this.framebuffer),this.debug&&Re(this.gl)):Ee(this.gl,this.debug,this.framebuffer)},t.prototype.downloadMatrixDriver=function(t,e){this.bindTextureToFrameBuffer(t);var n=e();return this.unbindTextureToFrameBuffer(),n},t.prototype.setOutputMatrixTextureDriver=function(t,e,n){this.throwIfDisposed();var r=this.gl;Ce(r,this.debug,t,this.framebuffer),this.debug&&Re(r),this.outputTexture=t,Jt(r,this.debug,(function(){return r.viewport(0,0,e,n)})),Jt(r,this.debug,(function(){return r.scissor(0,0,e,n)}))},t.prototype.setOutputMatrixWriteRegionDriver=function(t,e,n,r){var o=this;this.throwIfDisposed(),Jt(this.gl,this.debug,(function(){return o.gl.scissor(t,e,n,r)}))},t.prototype.throwIfDisposed=function(){if(this.disposed)throw new Error("Attempted to use disposed GPGPUContext.")},t.prototype.throwIfNoProgram=function(){if(null==this.program)throw new Error("No GPU program is currently set.")},t}();function Pi(t,e){if(t.length!==e.length)throw Error("Binary was compiled with "+t.length+" inputs, but was executed with "+e.length+" inputs");t.forEach((function(t,n){var r=t.logicalShape,o=e[n],a=o.shape;if(!S(r,a))throw Error("Binary was compiled with different shapes than the current args. Shapes "+r+" and "+a+" must match");if(!t.isUniform||!o.isUniform){var i=t.texShape,s=o.isUniform?null:o.texData.texShape;if(!S(i,s))throw Error("Binary was compiled with different texture shapes than the current args. Shape "+i+" and "+s+" must match")}}))}var Li=function(t,e,n){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=t;for(var r=n.filterWidth,o=n.inChannels,a=n.strideWidth,i=n.strideHeight,s=n.padInfo,u=n.outWidth,c=n.dilationWidth,l=n.dilationHeight,h=n.dataFormat,f=s.left,d=s.top,p=o*r,v=ua(),m="channelsLast"===h,g=m?0:1,y=m?1:2,x="",b=0;b<=1;b++)for(var w=0;w<=1;w++)x+="\n blockIndex = rc.y + "+w+";\n pos = rc.x + "+b+";\n\n if(blockIndex < "+t[1]+" && pos < "+t[0]+") {\n offsetY = int(blockIndex / ("+u+")) * "+i+" - "+d+";\n d0 = offsetY + "+l+" * (pos / "+p+");\n\n if(d0 < "+e[g]+" && d0 >= 0) {\n\n offsetX = int(mod(float(blockIndex), "+u+".) * "+a+". - "+f+".);\n d1 = offsetX + "+c+" * (int(mod(float(pos), "+p+".) / "+o+".));\n\n if(d1 < "+e[y]+" && d1 >= 0) {\n\n ch = int(mod(float(pos), "+o+".));\n\n if ("+m+") {\n innerDims = vec2(d1, ch);\n result["+(2*b+w)+"] = getChannel(\n getA(d0, int(innerDims.x),\n int(innerDims.y)), innerDims);\n } else {\n innerDims = vec2(d0, d1);\n result["+(2*b+w)+"] = getChannel(\n getA(ch, int(innerDims.x),\n int(innerDims.y)), innerDims);\n }\n }\n }\n }\n ";this.userCode="\n void main() {\n ivec2 rc = getOutputCoords();\n\n vec4 result = vec4(0);\n\n int blockIndex, pos, offsetY, d0, offsetX, d1, ch;\n vec2 innerDims;\n\n "+x+"\n\n "+v.output+" = result;\n }\n "},Wi=function(t,e,n,r,o){this.variableNames=["x"],this.outputShape=[];var a,i=e,s=t[3]-1;this.outputShape=t;var u="float("+n+") + float("+r+") * sum";a=.5===o?"inversesqrt("+u+")":1===o?"1.0/("+u+")":"exp(log("+u+") * float(-"+o+"));",this.userCode="\n void main() {\n ivec4 coords = getOutputCoords();\n int b = coords[0];\n int r = coords[1];\n int c = coords[2];\n int d = coords[3];\n float x = getX(b, r, c, d);\n float sum = 0.0;\n for (int j = -"+i+"; j <= "+i+"; j++) {\n int idx = d + j;\n if (idx >= 0 && idx <= "+s+") {\n float z = getX(b, r, c, idx);\n sum += z * z;\n }\n }\n float val = x * "+a+";\n setOutput(val);\n }\n "},Ui=function(t,e,n,r,o){this.variableNames=["inputImage","outputImage","dy"],this.outputShape=[],this.outputShape=t,this.depth=t[3],this.depthRadius=e,this.bias=n,this.alpha=r,this.beta=o,this.userCode="\n void main() {\n ivec4 coords = getOutputCoords();\n int b = coords[0];\n int r = coords[1];\n int c = coords[2];\n\n float result = 0.0;\n for (int d = 0; d < "+this.depth+"; ++d) {\n int depthBegin = int(max(0.0, float(d - "+e+")));\n int depthEnd = int(min(float("+this.depth+"),\n float(d + "+e+" + 1)));\n\n const int MIN_DEPTH_BEGIN = 0;\n const int MAX_DEPTH_END = "+this.depth+";\n\n float norm = 0.0;\n for (int k = MIN_DEPTH_BEGIN; k < MAX_DEPTH_END; ++k) {\n if (k < depthBegin){\n continue;\n }\n else if (k >= depthBegin && k < depthEnd) {\n norm += getInputImage(b, r, c, k) * getInputImage(b, r, c, k);\n }\n else {\n break;\n }\n }\n\n norm = float("+r+") * norm + float("+n+");\n\n for(int k = MIN_DEPTH_BEGIN; k < MAX_DEPTH_END; ++k){\n if (k < depthBegin){\n continue;\n }\n else if (k >= depthBegin && k < depthEnd){\n float dyi = -2.0 * float("+r+")\n * float("+o+")\n * getInputImage(b ,r ,c, k) * getOutputImage(b, r, c, d)\n / norm;\n if (k == d) {\n dyi += pow(norm, -1.0 * "+o+");\n }\n if (k == coords[3]) {\n dyi *= getDy(b, r, c, d);\n result += dyi;\n }\n }\n else {\n break;\n }\n }\n }\n setOutput(result);\n }\n "},Vi=function(t,e,n,r,o){this.variableNames=["x"],this.outputShape=[],this.packedInputs=!0,this.packedOutput=!0;var a,i=e,s=t[3]-1;this.outputShape=t;var u="float("+n+") + float("+r+") * sum";a=.5===o?"inversesqrt("+u+")":1===o?"1.0/("+u+")":"exp(log("+u+") * float(-"+o+"));",this.userCode="\n void main() {\n ivec4 coords = getOutputCoords();\n int b = coords.x;\n int r = coords.y;\n int c = coords.z;\n int d = coords.w;\n\n bool hasNextCol = d < "+this.outputShape[3]+";\n bool hasNextRow = c < "+this.outputShape[2]+";\n\n vec4 sum = vec4(0.);\n vec4 xFragAtOutputCoords = getX(b, r, c, d);\n\n vec4 xAtOutputCoords = vec4(\n getChannel(xFragAtOutputCoords, vec2(c, d)),\n hasNextCol ?\n getChannel(xFragAtOutputCoords, vec2(c, d + 1)) : 0.0,\n hasNextRow ?\n getChannel(xFragAtOutputCoords , vec2(c + 1, d)) : 0.0,\n (hasNextRow && hasNextCol) ?\n getChannel(xFragAtOutputCoords, vec2(c + 1, d + 1)) : 0.0\n );\n\n int firstChannel = d - "+i+";\n vec2 cache = vec2(0.);\n if(firstChannel >= 0){\n vec4 firstChannelFrag = getX(b, r, c, firstChannel);\n cache.x = getChannel(firstChannelFrag, vec2(c, firstChannel));\n if(hasNextRow){\n cache.y = getChannel(firstChannelFrag, vec2(c + 1, firstChannel));\n }\n }\n\n ivec2 depth = ivec2(d, d + 1);\n for (int j = - "+i+"; j <= "+i+"; j++) {\n ivec2 idx = depth + j;\n bvec2 aboveLowerBound = greaterThanEqual(idx, ivec2(0));\n bvec2 belowUpperBound = lessThanEqual(idx, ivec2("+s+"));\n\n bool depthInRange = aboveLowerBound.x && belowUpperBound.x;\n bool depthPlusOneInRange = aboveLowerBound.y && belowUpperBound.y;\n\n if(depthInRange || depthPlusOneInRange){\n vec4 z = vec4(0.);\n vec4 xFragAtCurrentDepth;\n z.xz = cache.xy;\n if(depthPlusOneInRange && hasNextCol){\n xFragAtCurrentDepth = idx.y != d ?\n getX(b, r, c, idx.y) : xFragAtOutputCoords;\n z.y = getChannel(xFragAtCurrentDepth, vec2(c, idx.y));\n if(hasNextRow){\n z.w = getChannel(xFragAtCurrentDepth, vec2(c + 1, idx.y));\n }\n }\n cache.xy = z.yw;\n sum += z * z;\n }\n }\n vec4 result = xAtOutputCoords * "+a+";\n setOutput(result);\n }\n "},zi=function(t){this.variableNames=["dy","maxPos"],this.outputShape=t.inShape;var e=t.strideHeight,n=t.strideWidth,r=t.dilationHeight,o=t.effectiveFilterHeight,a=t.effectiveFilterWidth,i=o-1-t.padInfo.top,s=a-1-t.padInfo.left,u=o*a-1;this.userCode="\n const ivec2 pads = ivec2("+i+", "+s+");\n\n void main() {\n ivec4 coords = getOutputCoords();\n int b = coords[0];\n int d = coords[3];\n\n ivec2 dyRCCorner = coords.yz - pads;\n int dyRCorner = dyRCCorner.x;\n int dyCCorner = dyRCCorner.y;\n\n // Convolve dy(?, ?, d) with pos mask(:, :, d) to get dx(xR, xC, d).\n // ? = to be determined. : = across all values in that axis.\n float dotProd = 0.0;\n for (int wR = 0; wR < "+o+";\n wR += "+r+") {\n float dyR = float(dyRCorner + wR) / "+e+".0;\n\n if (dyR < 0.0 || dyR >= "+t.outHeight+".0 || fract(dyR) > 0.0) {\n continue;\n }\n int idyR = int(dyR);\n\n for (int wC = 0; wC < "+a+"; wC++) {\n float dyC = float(dyCCorner + wC) / "+n+".0;\n\n if (dyC < 0.0 || dyC >= "+t.outWidth+".0 ||\n fract(dyC) > 0.0) {\n continue;\n }\n int idyC = int(dyC);\n\n float dyValue = getDy(b, idyR, idyC, d);\n int maxPosValue = "+u+" - int(getMaxPos(b, idyR, idyC, d));\n\n // Get the current value, check it against the value from the\n // position matrix.\n int curPosValue = wR * "+a+" + wC;\n float mask = float(maxPosValue == curPosValue ? 1.0 : 0.0);\n\n dotProd += dyValue * mask;\n }\n }\n setOutput(dotProd);\n }\n "},Gi=function(t){this.variableNames=["dy","maxPos"],this.outputShape=t.inShape;var e=t.strideDepth,n=t.strideHeight,r=t.strideWidth,o=t.dilationDepth,a=t.dilationHeight,i=t.dilationWidth,s=t.effectiveFilterDepth,u=t.effectiveFilterHeight,c=t.effectiveFilterWidth,l=s-1-t.padInfo.front,h=u-1-t.padInfo.top,f=c-1-t.padInfo.left,d=s*u*c-1;this.userCode="\n const ivec3 pads = ivec3("+l+", "+h+", "+f+");\n\n void main() {\n ivec5 coords = getOutputCoords();\n int batch = coords.x;\n int ch = coords.u;\n\n ivec3 dyCorner = ivec3(coords.y, coords.z, coords.w) - pads;\n int dyDCorner = dyCorner.x;\n int dyRCorner = dyCorner.y;\n int dyCCorner = dyCorner.z;\n\n // Convolve dy(?, ?, ?, ch) with pos mask(:, :, :, d) to get\n // dx(xD, xR, xC, ch).\n // ? = to be determined. : = across all values in that axis.\n float dotProd = 0.0;\n\n for (int wD = 0; wD < "+s+";\n wD += "+o+") {\n float dyD = float(dyDCorner + wD) / "+e+".0;\n\n if (dyD < 0.0 || dyD >= "+t.outDepth+".0 || fract(dyD) > 0.0) {\n continue;\n }\n int idyD = int(dyD);\n\n for (int wR = 0; wR < "+u+";\n wR += "+a+") {\n float dyR = float(dyRCorner + wR) / "+n+".0;\n\n if (dyR < 0.0 || dyR >= "+t.outHeight+".0 ||\n fract(dyR) > 0.0) {\n continue;\n }\n int idyR = int(dyR);\n\n for (int wC = 0; wC < "+c+";\n wC += "+i+") {\n float dyC = float(dyCCorner + wC) / "+r+".0;\n\n if (dyC < 0.0 || dyC >= "+t.outWidth+".0 ||\n fract(dyC) > 0.0) {\n continue;\n }\n int idyC = int(dyC);\n\n float dyValue = getDy(batch, idyD, idyR, idyC, ch);\n int maxPosValue = "+d+" -\n int(getMaxPos(batch, idyD, idyR, idyC, ch));\n\n // Get the current value, check it against the value from the\n // position matrix.\n int curPosValue =\n wD * "+u+" * "+c+" +\n wR * "+c+" + wC;\n float mask = float(maxPosValue == curPosValue ? 1.0 : 0.0);\n\n dotProd += dyValue * mask;\n }\n }\n }\n setOutput(dotProd);\n }\n "},Hi=function(t,e,n,r,o,a,i){void 0===n&&(n=!1),void 0===r&&(r=!1),void 0===o&&(o=!1),void 0===a&&(a=null),void 0===i&&(i=!1),this.variableNames=["matrixA","matrixB"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=e;var s=n?t[1]:t[2],u=Math.ceil(s/2),c=n?"i * 2, rc.y":"rc.y, i * 2",l=r?"rc.z, i * 2":"i * 2, rc.z",h=n?["a.xxyy","a.zzww"]:["a.xxzz","a.yyww"],f=r?["b.xzxz","b.ywyw"]:["b.xyxy","b.zwzw"],d="",p="";a&&(d=i?"vec4 activation(vec4 a) {\n vec4 b = getPreluActivationWeightsAtOutCoords();\n "+a+"\n }":"vec4 activation(vec4 x) {\n "+a+"\n }",p="result = activation(result);");var v=o?"result += getBiasAtOutCoords();":"";o&&this.variableNames.push("bias"),i&&this.variableNames.push("preluActivationWeights"),this.userCode="\n "+d+"\n\n const float sharedDimension = "+u+".0;\n\n vec4 dot2x2ARowBCol(ivec3 rc) {\n vec4 result = vec4(0);\n for (int i = 0; i < "+u+"; i++) {\n vec4 a = getMatrixA(rc.x, "+c+");\n vec4 b = getMatrixB(rc.x, "+l+");\n\n // These swizzled products need to be separately added.\n // See: https://github.com/tensorflow/tfjs/issues/1735\n result += ("+h[0]+" * "+f[0]+");\n result += ("+h[1]+" * "+f[1]+");\n }\n return result;\n }\n\n void main() {\n ivec3 rc = getOutputCoords();\n vec4 result = dot2x2ARowBCol(rc);\n\n "+v+"\n\n "+p+"\n\n setOutput(result);\n }\n "},qi=function(){function t(t,e,n){this.variableNames=["probs"],this.outputShape=[t,n],this.userCode="\n uniform float seed;\n\n void main() {\n ivec2 coords = getOutputCoords();\n int batch = coords[0];\n\n float r = random(seed);\n float cdf = 0.0;\n\n for (int i = 0; i < "+(e-1)+"; i++) {\n cdf += getProbs(batch, i);\n\n if (r < cdf) {\n setOutput(float(i));\n return;\n }\n }\n\n // If no other event happened, last event happened.\n setOutput(float("+(e-1)+"));\n }\n "}return t.prototype.getCustomSetupFunc=function(t){var e=this;return function(n,r){null==e.seedLoc&&(e.seedLoc=n.getUniformLocation(r,"seed")),n.gl.uniform1f(e.seedLoc,t)}},t}(),Ki=function(t,e,n,r){this.variableNames=["indices"],this.outputShape=[t,e],this.userCode="\n void main() {\n ivec2 coords = getOutputCoords();\n int index = round(getIndices(coords.x));\n setOutput(mix(float("+r+"), float("+n+"),\n float(index == coords.y)));\n }\n "},ji=function(t){this.variableNames=["A"],this.packedInputs=!1,this.packedOutput=!0,this.outputShape=t;var e=t.length;if(0===e)this.userCode="\n void main() {\n setOutput(vec4(getA(), 0., 0., 0.));\n }\n ";else{var n=sa("rc",e),r=wa(e),o=function(t,e,n){if(1===t)return"rc > "+e[0];for(var r="",o=t-2;o<t;o++)r+=n[o]+" >= "+e[o],o<t-1&&(r+="||");return r}(e,t,n),a=function(t,e,n,r){if(1===t)return"";var o=r.slice(-2);return"\n int r = "+o[0]+";\n int c = "+o[1]+";\n int rp1 = r + 1;\n int cp1 = c + 1;\n\n bool cEdge = cp1 >= "+e+";\n bool rEdge = rp1 >= "+n+";\n "}(e,t[t.length-1],t[t.length-2],n),i=function(t,e){var n=t.length,r=function(t,e){for(var n=[],r=0;r<=1;r++)for(var o=0;o<=1;o++){for(var a=(0===r?"r":"rp1")+", "+(0===o?"c":"cp1"),i=2;i<t;i++)a=e[e.length-1-i]+","+a;n.push(a)}return n}(n,e);return 1===n?"getA(rc),\n rc + 1 >= "+t[0]+" ? 0. : getA(rc + 1),\n 0, 0":"getA("+r[0]+"),\n cEdge ? 0. : getA("+r[1]+"),\n rEdge ? 0. : getA("+r[2]+"),\n rEdge || cEdge ? 0. : getA("+r[3]+")"}(t,n);this.userCode="\n void main() {\n "+r+" rc = getOutputCoords();\n\n if("+o+") {\n setOutput(vec4(0));\n } else {\n "+a+"\n\n setOutput(vec4("+i+"));\n }\n }\n "}};var Xi=function(t,e,n){this.variableNames=["x"],this.outputShape=e.map((function(e,n){return e[0]+t[n]+e[1]}));var r=t.length,o=wa(r),a=e.map((function(t){return t[0]})).join(","),i=e.map((function(e,n){return e[0]+t[n]})).join(","),s=["coords[0]","coords[1]","coords[2]","coords[3]"].slice(0,r);this.userCode=1!==r?"\n "+o+" start = "+o+"("+a+");\n "+o+" end = "+o+"("+i+");\n\n void main() {\n "+o+" outC = getOutputCoords();\n if (any(lessThan(outC, start)) || any(greaterThanEqual(outC, end))) {\n setOutput(float("+n+"));\n } else {\n "+o+" coords = outC - start;\n setOutput(getX("+s+"));\n }\n }\n ":"\n int start = "+a+";\n int end = "+i+";\n\n void main() {\n int outC = getOutputCoords();\n if (outC < start || outC >= end) {\n setOutput(float("+n+"));\n } else {\n setOutput(getX(outC - start));\n }\n }\n "},Yi=function(t,e,n){this.variableNames=["x"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=e.map((function(e,n){return e[0]+t[n]+e[1]}));for(var r=t.length,o=wa(r),a=e.map((function(t){return t[0]})).join(","),i=e.map((function(e,n){return e[0]+t[n]})).join(","),s=sa("rc",r),u=sa("source",r),c=s[r-1]+" < "+this.outputShape[r-1],l=1===r?"source":"vec2("+u.slice(-2).join()+")",h=[o+" rc = outputLoc;",s[r-1]+" += 1;\n if("+c+") {\n ",1===r?"":"}\n rc = outputLoc;\n "+s[r-2]+" += 1;\n if("+s[r-2]+" < "+this.outputShape[r-2]+") {",1===r?"":" "+s[r-1]+" += 1;\n if("+c+") {"],f=1===r?"rc < start || rc >= end":"any(lessThan(rc, start)) || any(greaterThanEqual(rc, end))",d="",p=0,v=1===r?2:4;p<v;p++)d+="\n "+h[p]+"\n if ("+f+") {\n result["+p+"] = float("+n+");\n } else {\n "+o+" source = rc - start;\n result["+p+"] = getChannel(getX("+u.join()+"), "+l+");\n }\n ";d+=1===r?"} ":"}}",this.userCode="\n const "+o+" start = "+o+"("+a+");\n const "+o+" end = "+o+"("+i+");\n\n void main() {\n "+o+" outputLoc = getOutputCoords();\n vec4 result = vec4(0.);\n "+d+"\n setOutput(result);\n }\n "},$i=function(t,e,n){if(this.variableNames=["x"],"avg"===e&&n)throw new Error("Cannot compute positions for average pool.");var r=t.filterWidth,o=t.strideHeight,a=t.strideWidth,i=t.dilationHeight,s=t.dilationWidth,u=t.effectiveFilterHeight,c=t.effectiveFilterWidth,l=t.padInfo.top,h=t.padInfo.left;this.outputShape=t.outShape;var f="avg"===e,d="0.0";if(f||(d="-1.0 / 1e-20"),n)this.userCode="\n const ivec2 strides = ivec2("+o+", "+a+");\n const ivec2 pads = ivec2("+l+", "+h+");\n\n void main() {\n ivec4 coords = getOutputCoords();\n int batch = coords[0];\n int d = coords[3];\n\n ivec2 xRCCorner = coords.yz * strides - pads;\n int xRCorner = xRCCorner.x;\n int xCCorner = xRCCorner.y;\n\n // max/min x(?, ?, d) to get y(yR, yC, d).\n // ? = to be determined\n float minMaxValue = 0.0;\n float minMaxValueFound = 0.0;\n int minMaxPosition = 0;\n float avgValue = 0.0;\n\n for (int wR = 0; wR < "+u+";\n wR += "+i+") {\n int xR = xRCorner + wR;\n\n if (xR < 0 || xR >= "+t.inHeight+") {\n continue;\n }\n\n for (int wC = 0; wC < "+c+";\n wC += "+s+") {\n int xC = xCCorner + wC;\n\n if (xC < 0 || xC >= "+t.inWidth+") {\n continue;\n }\n\n float value = getX(batch, xR, xC, d);\n\n // If a min / max value has already been found, use it. If not,\n // use the current value.\n float currMinMaxValue = mix(\n value, minMaxValue, minMaxValueFound);\n if (value >= currMinMaxValue) {\n minMaxValue = value;\n minMaxValueFound = 1.0;\n minMaxPosition = wR * "+c+" + wC;\n }\n }\n }\n setOutput(float(minMaxPosition));\n }\n ";else{var p=e+"("+e+"("+e+"(minMaxValue[0], minMaxValue[1]), minMaxValue[2]), minMaxValue[3])";"avg"===e&&(p="avgValue / count");var v=4*Math.floor(r/4),m=r%4,g="\n if ("+f+") {\n avgValue += dot(values, ones);\n } else {\n minMaxValue = max(values, minMaxValue);\n }\n ";this.userCode="\n const ivec2 strides = ivec2("+o+", "+a+");\n const ivec2 pads = ivec2("+l+", "+h+");\n const float initializationValue = "+d+";\n const vec4 ones = vec4(1.0, 1.0, 1.0, 1.0);\n\n float count = 0.0;\n\n float getValue(int batch, int xR, int xC, int d) {\n if (xC < 0 || xC >= "+t.inWidth+") {\n return initializationValue;\n }\n count += 1.0;\n return getX(batch, xR, xC, d);\n }\n\n void main() {\n ivec4 coords = getOutputCoords();\n int batch = coords[0];\n int d = coords[3];\n\n ivec2 xRCCorner = coords.yz * strides - pads;\n int xRCorner = xRCCorner.x;\n int xCCorner = xRCCorner.y;\n\n // max/min x(?, ?, d) to get y(yR, yC, d).\n // ? = to be determined\n vec4 minMaxValue = vec4("+d+");\n float avgValue = 0.0;\n count = 0.0;\n\n for (int wR = 0; wR < "+u+";\n wR += "+i+") {\n int xR = xRCorner + wR;\n\n if (xR < 0 || xR >= "+t.inHeight+") {\n continue;\n }\n\n for (int wC = 0; wC < "+v+"; wC += 4) {\n int xC = xCCorner + wC * "+s+";\n\n vec4 values = vec4(\n getValue(batch, xR, xC, d),\n getValue(batch, xR, xC + "+s+", d),\n getValue(batch, xR, xC + 2 * "+s+", d),\n getValue(batch, xR, xC + 3 * "+s+", d)\n );\n\n "+g+"\n }\n\n int xC = xCCorner + "+v+";\n if ("+(1===m)+") {\n vec4 values = vec4(\n getValue(batch, xR, xC, d),\n initializationValue,\n initializationValue,\n initializationValue\n );\n\n "+g+"\n } else if ("+(2===m)+") {\n vec4 values = vec4(\n getValue(batch, xR, xC, d),\n getValue(batch, xR, xC + "+s+", d),\n initializationValue,\n initializationValue\n );\n\n "+g+"\n } else if ("+(3===m)+") {\n vec4 values = vec4(\n getValue(batch, xR, xC, d),\n getValue(batch, xR, xC + "+s+", d),\n getValue(batch, xR, xC + 2 * "+s+", d),\n initializationValue\n );\n\n "+g+"\n }\n }\n setOutput("+p+");\n }\n "}},Qi=function(t,e,n){if(this.variableNames=["x"],"avg"===e&&n)throw new Error("Cannot compute positions for average pool.");var r=t.filterWidth,o=t.strideDepth,a=t.strideHeight,i=t.strideWidth,s=t.dilationDepth,u=t.dilationHeight,c=t.dilationWidth,l=t.effectiveFilterDepth,h=t.effectiveFilterHeight,f=t.effectiveFilterWidth,d=t.padInfo.front,p=t.padInfo.top,v=t.padInfo.left;this.outputShape=t.outShape;var m="avg"===e,g="0.0";if(m||(g="-1.0 / 1e-20"),n)this.userCode="\n const ivec3 strides =\n ivec3("+o+", "+a+", "+i+");\n const ivec3 pads = ivec3("+d+", "+p+", "+v+");\n\n void main() {\n ivec5 coords = getOutputCoords();\n int batch = coords.x;\n int ch = coords.u;\n\n ivec3 xCorner = ivec3(coords.y, coords.z, coords.w) * strides - pads;\n int xDCorner = xCorner.x;\n int xRCorner = xCorner.y;\n int xCCorner = xCorner.z;\n\n // max/min x(?, ?, ?, ch) to get y(yD, yR, yC, ch).\n // ? = to be determined\n float minMaxValue = 0.0;\n float minMaxValueFound = 0.0;\n int minMaxPosition = 0;\n\n for (int wD = 0; wD < "+l+";\n wD += "+s+") {\n int xD = xDCorner + wD;\n\n if (xD < 0 || xD >= "+t.inDepth+") {\n continue;\n }\n\n for (int wR = 0; wR < "+h+";\n wR += "+u+") {\n int xR = xRCorner + wR;\n\n if (xR < 0 || xR >= "+t.inHeight+") {\n continue;\n }\n\n for (int wC = 0; wC < "+f+";\n wC += "+c+") {\n int xC = xCCorner + wC;\n\n if (xC < 0 || xC >= "+t.inWidth+") {\n continue;\n }\n\n float value = getX(batch, xD, xR, xC, ch);\n\n // If a min / max value has already been found, use it. If not,\n // use the current value.\n float currMinMaxValue = mix(\n value, minMaxValue, minMaxValueFound);\n if (value >= currMinMaxValue) {\n minMaxValue = value;\n minMaxValueFound = 1.0;\n minMaxPosition =\n wD * "+h+" * "+f+" +\n wR * "+f+" + wC;;\n }\n }\n }\n }\n setOutput(float(minMaxPosition));\n }\n ";else{var y=e+"("+e+"("+e+"(minMaxValue[0], minMaxValue[1]), minMaxValue[2]), minMaxValue[3])";"avg"===e&&(y="avgValue / count");var x=4*Math.floor(r/4),b=r%4,w="\n if ("+m+") {\n avgValue += dot(values, ones);\n } else {\n minMaxValue = max(values, minMaxValue);\n }\n ";this.userCode="\n const ivec3 strides =\n ivec3("+o+", "+a+", "+i+");\n const ivec3 pads = ivec3("+d+", "+p+", "+v+");\n const float initializationValue = "+g+";\n const vec4 ones = vec4(1.0, 1.0, 1.0, 1.0);\n\n float count = 0.0;\n\n float getValue(int batch, int xD, int xR, int xC, int ch) {\n if (xC < 0 || xC >= "+t.inWidth+") {\n return initializationValue;\n }\n count += 1.0;\n return getX(batch, xD, xR, xC, ch);\n }\n\n void main() {\n ivec5 coords = getOutputCoords();\n int batch = coords.x;\n int ch = coords.u;\n\n ivec3 xCorner = ivec3(coords.y, coords.z, coords.w) * strides - pads;\n int xDCorner = xCorner.x;\n int xRCorner = xCorner.y;\n int xCCorner = xCorner.z;\n\n // max/min x(?, ?, ?, d) to get y(yD, yR, yC, ch).\n // ? = to be determined\n vec4 minMaxValue = vec4("+g+");\n float avgValue = 0.0;\n count = 0.0;\n\n for (int wD = 0; wD < "+l+";\n wD += "+s+") {\n int xD = xDCorner + wD;\n\n if (xD < 0 || xD >= "+t.inDepth+") {\n continue;\n }\n\n for (int wR = 0; wR < "+h+";\n wR += "+u+") {\n int xR = xRCorner + wR;\n\n if (xR < 0 || xR >= "+t.inHeight+") {\n continue;\n }\n\n for (int wC = 0; wC < "+x+"; wC += 4) {\n int xC = xCCorner + wC * "+c+";\n\n vec4 values = vec4(\n getValue(batch, xD, xR, xC, ch),\n getValue(batch, xD, xR, xC + "+c+", ch),\n getValue(batch, xD, xR, xC + 2 * "+c+", ch),\n getValue(batch, xD, xR, xC + 3 * "+c+", ch)\n );\n\n "+w+"\n }\n\n int xC = xCCorner + "+x+";\n if ("+(1===b)+") {\n vec4 values = vec4(\n getValue(batch, xD, xR, xC, ch),\n initializationValue,\n initializationValue,\n initializationValue\n );\n\n "+w+"\n } else if ("+(2===b)+") {\n vec4 values = vec4(\n getValue(batch, xD, xR, xC, ch),\n getValue(batch, xD, xR, xC + "+c+", ch),\n initializationValue,\n initializationValue\n );\n\n "+w+"\n } else if ("+(3===b)+") {\n vec4 values = vec4(\n getValue(batch, xD, xR, xC, ch),\n getValue(batch, xD, xR, xC + "+c+", ch),\n getValue(batch, xD, xR, xC + 2 * "+c+", ch),\n initializationValue\n );\n\n "+w+"\n }\n }\n setOutput("+y+");\n }\n }\n "}},Ji=function(t,e){this.variableNames=["x"];var n=t.windowSize,r=t.batchSize,o=t.inSize,a=Math.ceil(o/n);this.outputShape=[r,a];var i="0.0",s="";"prod"===e?i="1.0":"min"===e?(i="1.0 / 1e-20",s="min"):"max"===e&&(i="-1.0 / 1e-20",s="max");var u=e+"("+e+"("+e+"(minMaxValue[0], minMaxValue[1]), minMaxValue[2]), minMaxValue[3])";"sum"===e?u="sumValue":"prod"===e?u="prodValue":"all"===e?u="allValue":"any"===e&&(u="anyValue");var c=4*Math.floor(n/4),l=n%4,h="\n if ("+("sum"===e)+") {\n sumValue += dot(values, ones);\n } else if ("+("prod"===e)+") {\n vec2 tmp = vec2(values[0], values[1]) * vec2(values[2], values[3]);\n prodValue *= tmp[0] * tmp[1];\n } else {\n minMaxValue = "+s+"(values, minMaxValue);\n }\n ",f="vec4";"all"===e?(i="1.0",h="\n bool reducedAllValue = all(values);\n float floatedReducedAllValue = float(reducedAllValue);\n allValue = float(allValue >= 1.0 && floatedReducedAllValue >= 1.0);\n ",f="bvec4"):"any"===e&&(i="0.0",h="\n bool reducedAnyValue = any(values);\n float floatedReducedAnyValue = float(reducedAnyValue);\n anyValue = float(anyValue >= 1.0 || floatedReducedAnyValue >= 1.0);\n ",f="bvec4");var d="";o%n>0&&(d="\n if (inIdx < 0 || inIdx >= "+o+") {\n return initializationValue;\n }\n "),this.userCode="\n const float initializationValue = "+i+";\n const vec4 ones = vec4(1.0, 1.0, 1.0, 1.0);\n\n float getValue(int batch, int inIdx) {\n "+d+"\n return getX(batch, inIdx);\n }\n\n void main() {\n ivec2 coords = getOutputCoords();\n int batch = coords[0];\n int outIdx = coords[1];\n int inOffset = outIdx * "+n+";\n\n vec4 minMaxValue = vec4("+i+");\n float prodValue = 1.0;\n float sumValue = 0.0;\n float allValue = 1.0;\n float anyValue = 0.0;\n\n for (int i = 0; i < "+c+"; i += 4) {\n int inIdx = inOffset + i;\n "+f+" values = "+f+"(\n getValue(batch, inIdx),\n getValue(batch, inIdx + 1),\n getValue(batch, inIdx + 2),\n getValue(batch, inIdx + 3)\n );\n\n "+h+"\n }\n\n int inIdx = inOffset + "+c+";\n if ("+(1===l)+") {\n "+f+" values = "+f+"(\n getValue(batch, inIdx),\n initializationValue,\n initializationValue,\n initializationValue\n );\n\n "+h+"\n } else if ("+(2===l)+") {\n "+f+" values = "+f+"(\n getValue(batch, inIdx),\n getValue(batch, inIdx + 1),\n initializationValue,\n initializationValue\n );\n\n "+h+"\n } else if ("+(3===l)+") {\n "+f+" values = "+f+"(\n getValue(batch, inIdx),\n getValue(batch, inIdx + 1),\n getValue(batch, inIdx + 2),\n initializationValue\n );\n\n "+h+"\n }\n setOutput("+u+");\n }\n "},Zi=function(t,e){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=t;for(var n="",r=0;r<4;r++){var o="thisRC = rc;";r%2==1&&(o+="thisRC.z += 1;"),r>1&&(o+="thisRC.y += 1;"),n+="\n "+o+"\n "+(r>0?"if(thisRC.y < rows && thisRC.z < cols){":"")+"\n int flatIndex = getFlatIndex(thisRC);\n\n ivec3 inputRC = inputCoordsFromReshapedOutCoords(flatIndex);\n vec2 inputRCInnerDims = vec2(float(inputRC.y),float(inputRC.z));\n\n result["+r+"] =\n getChannel(getA(inputRC.x, inputRC.y, inputRC.z), inputRCInnerDims);\n "+(r>0?"}":"")+"\n "}this.userCode="\n \n ivec3 inputCoordsFromReshapedOutCoords(int index) {\n "+ca(["r","c","d"],e)+"\n return ivec3(r, c, d);\n }\n \n "+la(t)+"\n\n void main() {\n ivec3 rc = getOutputCoords();\n\n vec4 result = vec4(0.);\n\n ivec3 thisRC;\n int rows = "+t[1]+";\n int cols = "+t[2]+";\n\n "+n+"\n\n setOutput(result);\n }\n "};var ts=function(t,e,n){this.variableNames=["dy"],this.outputShape=[],this.outputShape=e.shape;var r=e.shape,o=r[1],a=r[2],i=t.shape,s=i[1],u=i[2],c=[n&&s>1?o-1:o,n&&u>1?a-1:a],l=[n&&s>1?s-1:s,n&&u>1?u-1:u],h=c[0]/l[0],f=c[1]/l[1],d=1/h,p=1/f,v=2*Math.ceil(d)+2,m=2*Math.ceil(p)+2;this.userCode="\n void main() {\n ivec4 coords = getOutputCoords();\n int b = coords[0];\n int d = coords[3];\n int r = coords[1];\n int c = coords[2];\n\n float accumulator = 0.0;\n\n const float heightScale = float("+h+");\n const float widthScale = float("+f+");\n\n const float invHeightScale = float("+d+");\n const float invWidthScale = float("+p+");\n\n const int winHeight = int("+v+");\n const int winWidth = int("+m+");\n\n // Compute bounds for where in dy we will look\n float startRLerp = floor(float(r) * invHeightScale);\n int startDyR = int(startRLerp - float(winHeight / 2));\n\n float startCLerp = floor(float(c) * invWidthScale);\n int startDyC = int(startCLerp - float(winWidth / 2));\n\n // Loop over dy\n for (int dyROffset = 0; dyROffset < winHeight; dyROffset++) {\n int dyR = dyROffset + startDyR;\n\n // Guard against the window exceeding the bounds of dy\n if (dyR < 0 || dyR >= "+s+") {\n continue;\n }\n\n for (int dyCOffset = 0; dyCOffset < winWidth; dyCOffset++) {\n int dyC = dyCOffset + startDyC;\n\n // Guard against the window exceeding the bounds of dy\n if (dyC < 0 || dyC >= "+u+") {\n continue;\n }\n\n float dxR = float(dyR) * heightScale;\n int topDxRIndex = int(floor(dxR));\n int bottomDxRIndex = int(min(ceil(dxR), "+(o-1)+".0));\n float dxRLerp = dxR - float(topDxRIndex);\n float inverseDxRLerp = 1.0 - dxRLerp;\n\n float dxC = float(dyC) * widthScale;\n int leftDxCIndex = int(floor(dxC));\n int rightDxCIndex = int(min(ceil(dxC), "+(a-1)+".0));\n float dxCLerp = dxC - float(leftDxCIndex);\n float inverseDxCLerp = 1.0 - dxCLerp;\n\n if (r == topDxRIndex && c == leftDxCIndex) {\n // topLeft\n accumulator +=\n getDy(b, dyR, dyC, d) * inverseDxRLerp * inverseDxCLerp;\n }\n\n if (r == topDxRIndex && c == rightDxCIndex) {\n // topRight\n accumulator += getDy(b, dyR, dyC, d) * inverseDxRLerp * dxCLerp;\n }\n\n if (r == bottomDxRIndex && c == leftDxCIndex) {\n // bottomLeft\n accumulator += getDy(b, dyR, dyC, d) * dxRLerp * inverseDxCLerp;\n }\n\n if (r == bottomDxRIndex && c == rightDxCIndex) {\n // bottomRight\n accumulator += getDy(b, dyR, dyC, d) * dxRLerp * dxCLerp;\n }\n }\n }\n // End loop over dy\n\n setOutput(accumulator);\n }\n "},es=function(t,e,n,r){this.variableNames=["A"],this.outputShape=[];var o=t[0],a=t[1],i=t[2],s=t[3];this.outputShape=[o,e,n,s];var u=[r&&e>1?a-1:a,r&&n>1?i-1:i],c=[r&&e>1?e-1:e,r&&n>1?n-1:n];this.userCode="\n const vec2 effectiveInputOverOutputRatioRC = vec2(\n "+u[0]/c[0]+",\n "+u[1]/c[1]+");\n const vec2 inputShapeRC = vec2("+a+".0, "+i+".0);\n\n void main() {\n ivec4 coords = getOutputCoords();\n int b = coords[0];\n int d = coords[3];\n ivec2 yRC = coords.yz;\n\n // Fractional source index.\n vec2 sourceFracIndexRC = vec2(yRC) * effectiveInputOverOutputRatioRC;\n\n // Compute the four integer indices.\n ivec2 sourceFloorRC = ivec2(sourceFracIndexRC);\n ivec2 sourceCeilRC = ivec2(\n min(inputShapeRC - 1.0, ceil(sourceFracIndexRC)));\n\n float topLeft = getA(b, sourceFloorRC.x, sourceFloorRC.y, d);\n float bottomLeft = getA(b, sourceCeilRC.x, sourceFloorRC.y, d);\n float topRight = getA(b, sourceFloorRC.x, sourceCeilRC.y, d);\n float bottomRight = getA(b, sourceCeilRC.x, sourceCeilRC.y, d);\n\n vec2 fracRC = sourceFracIndexRC - vec2(sourceFloorRC);\n\n float top = topLeft + (topRight - topLeft) * fracRC.y;\n float bottom = bottomLeft + (bottomRight - bottomLeft) * fracRC.y;\n float newValue = top + (bottom - top) * fracRC.x;\n\n setOutput(newValue);\n }\n "},ns=function(t,e,n,r){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=[];var o=t[0],a=t[1],i=t[2],s=t[3];this.outputShape=[o,e,n,s];var u=[r&&e>1?a-1:a,r&&n>1?i-1:i],c=[r&&e>1?e-1:e,r&&n>1?n-1:n];this.userCode="\n const vec3 effectiveInputOverOutputRatioRC = vec3(\n "+u[0]/c[0]+",\n "+u[1]/c[1]+",\n "+u[1]/c[1]+");\n const vec3 inputShapeRC = vec3("+a+".0, "+i+".0,\n "+i+".0);\n\n float getAValue(int b, int r, int c, int d) {\n return getChannel(getA(b, r, c, d), vec2(c, d));\n }\n\n void main() {\n ivec4 coords = getOutputCoords();\n int b = coords[0];\n int d = coords[3];\n // Calculate values for next column in yRC.z.\n ivec3 yRC = coords.yzz + ivec3(0, 0, 1);\n\n // Fractional source index.\n vec3 sourceFracIndexRC = vec3(yRC) * effectiveInputOverOutputRatioRC;\n\n // Compute the four integer indices.\n ivec3 sourceFloorRC = ivec3(sourceFracIndexRC);\n ivec3 sourceCeilRC = ivec3(\n min(inputShapeRC - 1.0, ceil(sourceFracIndexRC)));\n\n // Should we calculate next column and row elements in 2x2 packed cell.\n bool hasNextCol = d < "+(s-1)+";\n bool hasNextRow = coords.z < "+(n-1)+";\n\n // In parallel, construct four corners for all four components in\n // packed 2x2 cell.\n vec4 topLeft = vec4(\n getAValue(b, sourceFloorRC.x, sourceFloorRC.y, d),\n hasNextCol ? getAValue(b, sourceFloorRC.x, sourceFloorRC.y, d + 1)\n : 0.0,\n hasNextRow ? getAValue(b, sourceFloorRC.x, sourceFloorRC.z, d)\n : 0.0,\n (hasNextRow && hasNextCol) ?\n getAValue(b, sourceFloorRC.x, sourceFloorRC.z, d + 1) : 0.0);\n\n vec4 bottomLeft = vec4(\n getAValue(b, sourceCeilRC.x, sourceFloorRC.y, d),\n hasNextCol ? getAValue(b, sourceCeilRC.x, sourceFloorRC.y, d + 1)\n : 0.0,\n hasNextRow ? getAValue(b, sourceCeilRC.x, sourceFloorRC.z, d)\n : 0.0,\n (hasNextRow && hasNextCol) ?\n getAValue(b, sourceCeilRC.x, sourceFloorRC.z, d + 1) : 0.0);\n\n vec4 topRight = vec4(\n getAValue(b, sourceFloorRC.x, sourceCeilRC.y, d),\n hasNextCol ? getAValue(b, sourceFloorRC.x, sourceCeilRC.y, d + 1)\n : 0.0,\n hasNextRow ? getAValue(b, sourceFloorRC.x, sourceCeilRC.z, d)\n : 0.0,\n (hasNextRow && hasNextCol) ?\n getAValue(b, sourceFloorRC.x, sourceCeilRC.z, d + 1) : 0.0);\n\n vec4 bottomRight = vec4(\n getAValue(b, sourceCeilRC.x, sourceCeilRC.y, d),\n hasNextCol ? getAValue(b, sourceCeilRC.x, sourceCeilRC.y, d + 1)\n : 0.0,\n hasNextRow ? getAValue(b, sourceCeilRC.x, sourceCeilRC.z, d)\n : 0.0,\n (hasNextRow && hasNextCol) ?\n getAValue(b, sourceCeilRC.x, sourceCeilRC.z, d + 1) : 0.0);\n\n vec3 fracRC = sourceFracIndexRC - vec3(sourceFloorRC);\n\n vec4 top = mix(topLeft, topRight, fracRC.yyzz);\n vec4 bottom = mix(bottomLeft, bottomRight, fracRC.yyzz);\n vec4 newValue = mix(top, bottom, fracRC.x);\n\n setOutput(newValue);\n }\n "},rs=function(t,e,n){this.variableNames=["dy"],this.outputShape=[],this.outputShape=e.shape;var r=e.shape,o=r[1],a=r[2],i=t.shape,s=i[1],u=i[2],c=[n&&s>1?o-1:o,n&&u>1?a-1:a],l=[n&&s>1?s-1:s,n&&u>1?u-1:u],h=c[0]/l[0],f=c[1]/l[1],d=1/h,p=1/f,v=2*Math.ceil(d)+2,m=2*Math.ceil(p)+2;this.userCode="\n void main() {\n ivec4 coords = getOutputCoords();\n int b = coords[0];\n int d = coords[3];\n int r = coords[1];\n int c = coords[2];\n\n float accumulator = 0.0;\n\n const float heightScale = float("+h+");\n const float widthScale = float("+f+");\n\n const float invHeightScale = float("+d+");\n const float invWidthScale = float("+p+");\n\n const int winHeight = int("+v+");\n const int winWidth = int("+m+");\n\n // Compute bounds for where in dy we will look\n float startRLerp = floor(float(r) * invHeightScale);\n int startDyR = int(floor(startRLerp - float(winHeight / 2)));\n\n float startCLerp = floor(float(c) * invWidthScale);\n int startDyC = int(floor(startCLerp - float(winWidth / 2)));\n\n // Loop over dy\n for (int dyROffset = 0; dyROffset < winHeight; dyROffset++) {\n int dyR = dyROffset + startDyR;\n\n // Guard against the window exceeding the bounds of dy\n if (dyR < 0 || dyR >= "+s+") {\n continue;\n }\n\n for (int dyCOffset = 0; dyCOffset < winWidth; dyCOffset++) {\n int dyC = dyCOffset + startDyC;\n\n // Guard against the window exceeding the bounds of dy\n if (dyC < 0 || dyC >= "+u+") {\n continue;\n }\n\n float sourceFracRow =\n float("+c[0]+") *\n (float(dyR) / float("+l[0]+"));\n\n float sourceFracCol =\n float("+c[1]+") *\n (float(dyC) / float("+l[1]+"));\n\n int sourceNearestRow = int(min(\n float(int("+o+") - 1),\n "+n+" ? float(round(sourceFracRow)) :\n float(floor(sourceFracRow))));\n\n int sourceNearestCol = int(min(\n float(int("+a+") - 1),\n "+n+" ? float(round(sourceFracCol)) :\n float(floor(sourceFracCol))));\n\n if (r == sourceNearestRow && c == sourceNearestCol) {\n accumulator += getDy(b, dyR, dyC, d);\n }\n }\n }\n // End loop over dy\n\n setOutput(accumulator);\n }\n "},os=function(t,e,n,r){this.variableNames=["A"],this.outputShape=[];var o=t[0],a=t[1],i=t[2],s=t[3];this.outputShape=[o,e,n,s];var u=[r&&e>1?a-1:a,r&&n>1?i-1:i],c=[r&&e>1?e-1:e,r&&n>1?n-1:n],l=r?"0.5":"0.0";this.userCode="\n const vec2 effectiveInputOverOutputRatioRC = vec2(\n "+u[0]/c[0]+",\n "+u[1]/c[1]+");\n const vec2 inputShapeRC = vec2("+a+".0, "+i+".0);\n\n void main() {\n ivec4 coords = getOutputCoords();\n int b = coords[0];\n int d = coords[3];\n ivec2 yRC = coords.yz;\n\n // Fractional source index.\n vec2 sourceFracIndexRC = vec2(yRC) * effectiveInputOverOutputRatioRC;\n\n // Compute the coordinators of nearest neighbor point.\n ivec2 sourceNearestRC = ivec2(\n min(inputShapeRC - 1.0, floor(sourceFracIndexRC + "+l+")));\n\n float newValue = getA(b, sourceNearestRC.x, sourceNearestRC.y, d);\n\n setOutput(newValue);\n }\n "},as=function(t,e){this.variableNames=["x"];var n=t.length;if(n>4)throw new Error("WebGL backend: Reverse of rank-"+n+" tensor is not yet supported");if(this.outputShape=t,1!==n){var r=t.map((function(n,r){return function(n){return-1!==e.indexOf(n)&&1!==t[n]?t[n]+" - coords["+n+"] - 1":"coords["+n+"]"}(r)})).join(","),o=wa(n);this.userCode="\n void main() {\n "+o+" coords = getOutputCoords();\n setOutput(getX("+r+"));\n }\n "}else this.userCode="\n void main() {\n int coord = getOutputCoords();\n setOutput(getX("+t[0]+" - coord - 1));\n }\n "},is=function(t,e){this.variableNames=["x"],this.packedInputs=!0,this.packedOutput=!0;var n=t.length;if(n>4)throw new Error("WebGL backend: Reverse of rank-"+n+" tensor is not yet supported");this.outputShape=t;var r=sa("rc",n),o=r[n-1]+" + 1 < "+this.outputShape[n-1],a=r[n-2]+" + 1 < "+this.outputShape[n-2],i=wa(n);function s(n){var r=t.map((function(r,o){return function(n,r){return-1!==e.indexOf(n)&&1!==t[n]?t[n]+" - "+r[n]+" - 1":""+r[n]}(o,n)}));return"getChannel(getX("+r.join(",")+"), vec2("+r.slice(-2).join(",")+"))"}this.userCode=1===n?"\n void main(){\n int rc = getOutputCoords();\n vec4 result = vec4(0.);\n result.r = getChannel(getX("+t[0]+" - rc - 1),\n "+t[0]+" - rc - 1);\n if("+o+"){\n result.g = getChannel(getX("+t[0]+" - (rc + 1) - 1),\n "+t[0]+" - (rc + 1) - 1);\n }\n setOutput(result);\n }\n ":"\n void main() {\n "+i+" rc = getOutputCoords();\n vec4 result = vec4(0.);\n result.r = "+function(t){return s(t)}(r.slice())+";\n if("+o+"){\n result.g = "+function(t){return t[n-1]="("+t[n-1]+" + 1)",s(t)}(r.slice())+";\n }\n if("+a+") {\n result.b = "+function(t){return t[n-2]="("+t[n-2]+" + 1)",s(t)}(r.slice())+";\n if("+o+") {\n result.a = "+function(t){return t[n-1]="("+t[n-1]+" + 1)",t[n-2]="("+t[n-2]+" + 1)",s(t)}(r.slice())+";\n }\n }\n setOutput(result);\n }\n "},ss=function(t,e,n,r,o,a,i){void 0===i&&(i=!0),this.variableNames=["updates","indices","defaultValue"],this.outputShape=a;var s=wa(o.length),u=wa(a.length),c="";1===n?c="i":2===n&&(c="i, j");var l="getIndices("+c+")",h="";1===r?h="i":2===r&&(h="i, coords[1]");var f="getUpdates("+h+")",d=e>1?"strides[j]":"strides";this.userCode="\n "+s+" strides = "+s+"("+o+");\n\n void main() {\n "+u+" coords = getOutputCoords();\n float sum = 0.0;\n bool found = false;\n for (int i = 0; i < "+t+"; i++) {\n int flattenedIndex = 0;\n for (int j = 0; j < "+e+"; j++) {\n int index = round("+l+");\n flattenedIndex += index * "+d+";\n }\n if (flattenedIndex == coords[0]) {\n sum += "+f+";\n found = true;\n }\n }\n setOutput(mix(getDefaultValue(), sum, float(found)));\n }\n "},us=function(t,e){this.variableNames=["x","segmentIds"];var n=t.windowSize,r=t.batchSize,o=t.inSize,a=t.numSegments,i=a*Math.ceil(o/n);this.outputShape=[r,i];var s=4*Math.floor(n/4),u=n%4,c="\n sumValue += dot(values, segFilter);\n ",l="";o%n>0&&(l="\n if (inIdx < 0 || inIdx >= "+o+") {\n return initializationValue;\n }\n ");var h="";o%n>0&&(h="\n if (inIdx < 0 || inIdx >= "+o+") {\n return -1.0;\n }\n "),this.userCode="\n const float initializationValue = 0.0;\n\n float getValue(int batch, int inIdx) {\n "+l+"\n return getX(batch, inIdx);\n }\n\n float getSegmentIdAtIndex(int inIdx) {\n "+h+"\n return getSegmentIds(inIdx);\n }\n\n void main() {\n ivec2 coords = getOutputCoords();\n int batch = coords[0];\n int outIdx = coords[1];\n int inOffset = int(floor(float(outIdx) / float(\n "+a+")) * float("+n+"));\n int currentSeg = int(mod(float(outIdx), float("+a+")));\n\n float sumValue = 0.0;\n\n for (int i = 0; i < "+s+"; i += 4) {\n int inIdx = inOffset + i;\n vec4 values = vec4(\n getValue(batch, inIdx),\n getValue(batch, inIdx + 1),\n getValue(batch, inIdx + 2),\n getValue(batch, inIdx + 3)\n );\n\n vec4 segFilter = vec4(\n int(getSegmentIdAtIndex(inIdx)) == currentSeg ? 1 : 0,\n int(getSegmentIdAtIndex(inIdx + 1)) == currentSeg ? 1 : 0,\n int(getSegmentIdAtIndex(inIdx + 2)) == currentSeg ? 1 : 0,\n int(getSegmentIdAtIndex(inIdx + 3)) == currentSeg ? 1 : 0\n );\n\n "+c+"\n }\n\n int inIdx = inOffset + "+s+";\n if ("+(1===u)+") {\n vec4 values = vec4(\n getValue(batch, inIdx),\n initializationValue,\n initializationValue,\n initializationValue\n );\n\n int inIdxSeg = int(getSegmentIdAtIndex(inIdx));\n\n vec4 segFilter = vec4(\n int(getSegmentIdAtIndex(inIdx)) == currentSeg ? 1 : 0,\n 0,\n 0,\n 0\n );\n\n "+c+"\n } else if ("+(2===u)+") {\n vec4 values = vec4(\n getValue(batch, inIdx),\n getValue(batch, inIdx + 1),\n initializationValue,\n initializationValue\n );\n\n vec4 segFilter = vec4(\n int(getSegmentIdAtIndex(inIdx)) == currentSeg ? 1 : 0,\n int(getSegmentIdAtIndex(inIdx + 1)) == currentSeg ? 1 : 0,\n 0,\n 0\n );\n\n "+c+"\n } else if ("+(3===u)+") {\n vec4 values = vec4(\n getValue(batch, inIdx),\n getValue(batch, inIdx + 1),\n getValue(batch, inIdx + 2),\n initializationValue\n );\n\n vec4 segFilter = vec4(\n int(getSegmentIdAtIndex(inIdx)) == currentSeg ? 1 : 0,\n int(getSegmentIdAtIndex(inIdx + 1)) == currentSeg ? 1 : 0,\n int(getSegmentIdAtIndex(inIdx + 2)) == currentSeg ? 1 : 0,\n 0\n );\n\n "+c+"\n }\n setOutput(sumValue);\n }\n "},cs=function(t,e,n){var r,o;if(this.variableNames=["c","a","b"],this.outputShape=e,n>4)throw Error("Where for rank "+n+" is not yet supported");if(1===n)o="resRC",r="resRC";else{for(var a=["resRC.x","resRC.y","resRC.z","resRC.w"],i=[],s=[],u=0;u<e.length;u++)s.push(""+a[u]),u<t&&i.push(""+a[u]);r=i.join(),o=s.join()}var c=wa(n);this.userCode="\n void main() {\n "+c+" resRC = getOutputCoords();\n float cVal = getC("+r+");\n if (cVal >= 1.0) {\n setOutput(getA("+o+"));\n } else {\n setOutput(getB("+o+"));\n }\n }\n "},ls=function(){function t(t){this.variableNames=["source"],this.outputShape=t,this.rank=t.length;var e,n=wa(this.rank),r="uniform int start["+this.rank+"];",o=function(t){if(1===t)return"sourceLoc";if(t<=6)return hs.slice(0,t).map((function(t){return"sourceLoc."+t})).join(",");throw Error("Slicing for rank "+t+" is not yet supported")}(this.rank);e="\n "+n+" sourceLoc;\n "+n+" coords = getOutputCoords();\n "+t.map((function(t,e){return"sourceLoc."+hs[e]+" = start["+e+"] + coords."+hs[e]+";"})).join("\n")+"\n ",this.userCode="\n "+r+"\n void main() {\n "+e+"\n setOutput(getSource("+o+"));\n }\n "}return t.prototype.getCustomSetupFunc=function(t){var e=this;if(t.length!==this.rank)throw Error("The rank ("+this.rank+") of the program must match the length of start ("+t.length+")");return function(n,r){null==e.startLoc&&(e.startLoc=n.getUniformLocationNoThrow(r,"start"),null==e.startLoc)||n.gl.uniform1iv(e.startLoc,t)}},t}(),hs=["x","y","z","w","u","v"];var fs=function(){function t(t){this.variableNames=["source"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=t,this.rank=t.length;var e=wa(this.rank),n=sa("coords",this.rank),r=sa("sourceLoc",this.rank),o=1===this.rank?"sourceLoc":"vec2("+r.slice(-2).join()+")",a="getChannel(getSource("+r.join()+"), "+o+")",i="\n result.x = "+a+";\n if (++"+n[this.rank-1]+" < "+t[this.rank-1]+") {\n ++"+r[this.rank-1]+";\n result.y = "+a+";\n --"+r[this.rank-1]+";\n }\n ",s=1===this.rank?"":"\n --"+n[this.rank-1]+";\n if (++"+n[this.rank-2]+" < "+t[this.rank-2]+") {\n ++"+r[this.rank-2]+";\n result.z = "+a+";\n if (++"+n[this.rank-1]+" < "+t[this.rank-1]+") {\n ++"+r[this.rank-1]+";\n result.w = "+a+";\n }\n }\n ",u=this.rank<=4?"sourceLoc = coords +\n "+e+"("+t.map((function(t,e){return"start["+e+"]"})).join()+");":t.map((function(t,e){return r[e]+" = "+n[e]+" + start["+e+"];"})).join("\n");this.userCode="\n uniform int start["+this.rank+"];\n void main() {\n "+e+" coords = getOutputCoords();\n "+e+" sourceLoc;\n "+u+"\n vec4 result = vec4(0.);\n "+i+"\n "+s+"\n setOutput(result);\n }\n "}return t.prototype.getCustomSetupFunc=function(t){var e=this;if(t.length!==this.rank)throw Error("The rank ("+this.rank+") of the program must match the length of start ("+t.length+")");return function(n,r){null==e.startLoc&&(e.startLoc=n.getUniformLocationNoThrow(r,"start"),null==e.startLoc)||n.gl.uniform1iv(e.startLoc,t)}},t}(),ds=function(t,e,n){this.variableNames=["x"],this.outputShape=n;var r=n.length,o=wa(n.length),a=wa(n.length),i="";if(1===r)i="coords * strides + begin";else{var s=0;i=n.map((function(t,e){return s++,1===n.length?"coords * strides["+e+"] + begin["+e+"]":"coords["+(s-1)+"] * strides["+e+"] + begin["+e+"]"})).join(",")}this.userCode="\n "+o+" begin = "+o+"("+t+");\n "+o+" strides = "+o+"("+e+");\n\n void main() {\n "+a+" coords = getOutputCoords();\n setOutput(getX("+i+"));\n }\n "},ps=function(){function t(t){this.gpgpu=t,this.numUsedTextures=0,this.numFreeTextures=0,this.freeTextures={},this.logEnabled=!1,this.usedTextures={}}return t.prototype.acquireTexture=function(t,e,n){var r,o=vs(e,n),a=ms(t,o,n);if(a in this.freeTextures||(this.freeTextures[a]=[]),a in this.usedTextures||(this.usedTextures[a]=[]),this.freeTextures[a].length>0){this.numFreeTextures--,this.numUsedTextures++,this.log();var i=this.freeTextures[a].shift();return this.usedTextures[a].push(i),i}return this.numUsedTextures++,this.log(),o===Gt.PACKED_2X2_FLOAT32?r=this.gpgpu.createPackedMatrixTexture(t[0],t[1]):o===Gt.PACKED_2X2_FLOAT16?r=this.gpgpu.createFloat16PackedMatrixTexture(t[0],t[1]):o===Gt.UNPACKED_FLOAT32?r=this.gpgpu.createFloat32MatrixTexture(t[0],t[1]):o===Gt.UNPACKED_FLOAT16?r=this.gpgpu.createFloat16MatrixTexture(t[0],t[1]):o===Gt.PACKED_4X1_UNSIGNED_BYTE&&(r=this.gpgpu.createUnsignedBytesMatrixTexture(t[0],t[1])),this.usedTextures[a].push(r),r},t.prototype.releaseTexture=function(t,e,n,r){if(null!=this.freeTextures){var o=ms(e,vs(n,r),r);o in this.freeTextures||(this.freeTextures[o]=[]),this.freeTextures[o].push(t),this.numFreeTextures++,this.numUsedTextures--;var a=this.usedTextures[o],i=a.indexOf(t);if(i<0)throw new Error("Cannot release a texture that was never provided by this texture manager");a.splice(i,1),this.log()}},t.prototype.log=function(){if(this.logEnabled){var t=this.numFreeTextures+this.numUsedTextures;console.log("Free/Used",this.numFreeTextures+" / "+this.numUsedTextures,"("+t+")")}},t.prototype.getNumUsedTextures=function(){return this.numUsedTextures},t.prototype.getNumFreeTextures=function(){return this.numFreeTextures},t.prototype.dispose=function(){var t=this;if(null!=this.freeTextures){for(var e in this.freeTextures)this.freeTextures[e].forEach((function(e){t.gpgpu.deleteMatrixTexture(e)}));for(var e in this.usedTextures)this.usedTextures[e].forEach((function(e){t.gpgpu.deleteMatrixTexture(e)}));this.freeTextures=null,this.usedTextures=null,this.numUsedTextures=0,this.numFreeTextures=0}},t}();function vs(t,e){if(t===zt.UPLOAD)return Gt.PACKED_2X2_FLOAT32;if(t===zt.RENDER||null==t)return function(t){return i().getBool("WEBGL_RENDER_FLOAT32_ENABLED")?t?Gt.PACKED_2X2_FLOAT32:Gt.UNPACKED_FLOAT32:t?Gt.PACKED_2X2_FLOAT16:Gt.UNPACKED_FLOAT16}(e);if(t===zt.DOWNLOAD||t===zt.PIXELS)return Gt.PACKED_4X1_UNSIGNED_BYTE;throw new Error("Unknown logical texture type "+t)}function ms(t,e,n){return t[0]+"_"+t[1]+"_"+e+"_"+n}var gs=function(t,e){this.variableNames=["A"];for(var n=new Array(t.length),r=0;r<n.length;r++)n[r]=t[r]*e[r];this.outputShape=n,this.rank=n.length;var o=wa(this.rank),a=function(t){var e=t.length;if(e>5)throw Error("Tile for rank "+e+" is not yet supported");if(1===e)return"imod(resRC, "+t[0]+")";for(var n=["resRC.x","resRC.y","resRC.z","resRC.w","resRC.u"],r=[],o=0;o<t.length;o++)r.push("imod("+n[o]+", "+t[o]+")");return r.join()}(t);this.userCode="\n void main() {\n "+o+" resRC = getOutputCoords();\n setOutput(getA("+a+"));\n }\n "};var ys=function(t,e){this.variableNames=["A"];for(var n=new Array(t.length),r=0;r<n.length;r++)n[r]=t[e[r]];this.outputShape=n,this.rank=n.length;var o=wa(this.rank),a=function(t){var e=t.length;if(e>6)throw Error("Transpose for rank "+e+" is not yet supported");for(var n=["resRC.x","resRC.y","resRC.z","resRC.w","resRC.u","resRC.v"],r=new Array(e),o=0;o<t.length;o++)r[t[o]]=n[o];return r.join()}(e);this.userCode="\n void main() {\n "+o+" resRC = getOutputCoords();\n setOutput(getA("+a+"));\n }\n "};var xs=function(t,e){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!0;for(var n=new Array(t.length),r=0;r<n.length;r++)n[r]=t[e[r]];if(this.outputShape=n,this.rank=n.length,this.rank>6)throw Error("Packed transpose for rank "+this.rank+" is not yet supported.");var o=wa(this.rank),a=ia("rc",this.rank),i=new Array(this.rank);for(r=0;r<e.length;r++)i[e[r]]=a[r];var s="vec2("+i.slice(-2).join()+")",u="++"+a[this.rank-1]+" < "+n[this.rank-1],c="getChannel(getA("+i.join()+"), "+s+")";this.userCode="\n void main() {\n "+o+" rc = getOutputCoords();\n vec4 result = vec4(0.);\n result[0] = "+c+";\n if("+u+") {\n result[1] = "+c+";\n }\n --"+a[this.rank-1]+";\n if(++"+a[this.rank-2]+" < "+n[this.rank-2]+") {\n result[2] = "+c+";\n if("+u+") {\n result[3] = "+c+";\n }\n }\n setOutput(result);\n }\n "},bs=1.7580993408473768,ws=1.0507009873554805,Cs=function(t,e){this.variableNames=["A"],this.outputShape=t,this.userCode="\n float unaryOperation(float x) {\n "+e+"\n }\n\n void main() {\n float x = getAAtOutCoords();\n float y = unaryOperation(x);\n\n setOutput(y);\n }\n "},Es="if (isnan(x)) return x;",Rs="return x;",Is="return abs(x);",ks=Es+"\n return (x < 0.0) ? 0.0 : x;\n",Ss=Es+"\n return (x < 0.0) ? 0.0 : min(6.0, x);\n",As="return (x >= 0.0) ? x : (exp(x) - 1.0);",Ds="\n // Stable and Attracting Fixed Point (0, 1) for Normalized Weights.\n // see: https://arxiv.org/abs/1706.02515\n float scaleAlpha = "+bs+";\n float scale = "+ws+";\n return (x >= 0.0) ? scale * x : scaleAlpha * (exp(x) - 1.0);\n";var Ts="return -x;",Ns="return ceil(x);",Fs="return floor(x);",_s="return exp(x);",Os="return exp(x) - 1.0;",Ms=Es+"\n return sin(x);\n",Bs=Es+"\n return cos(x);\n",Ps=Es+"\n if (abs(x) > 1.) {\n return NAN;\n }\n return asin(x);\n",Ls=Es+"\n if (abs(x) > 1.) {\n return NAN;\n }\n return acos(x);\n",Ws=Es+"\n return atan(x);\n",Us=Es+"return log(x + sqrt(x * x + 1.0));",Vs=Es+"\n if (x < 1.0) return NAN;\n return log(x + sqrt(x * x - 1.0));",zs=Es+"\n if ((x < -1.0) || (x > 1.0)) return NAN;\n return (log(1.0 + x) - log(1.0 - x)) / 2.0;",Gs="return x;",Hs="return x;",qs="\n vec4 result = x * vec4(greaterThanEqual(x, vec4(0.0)));\n bvec4 isNaN = isnan(x);\n\n result.r = isNaN.r ? x.r : result.r;\n result.g = isNaN.g ? x.g : result.g;\n result.b = isNaN.b ? x.b : result.b;\n result.a = isNaN.a ? x.a : result.a;\n\n return result;\n",Ks="\n vec4 result = min(x, vec4(6.)) * vec4(greaterThanEqual(x, vec4(0.0)));\n bvec4 isNaN = isnan(x);\n\n result.r = isNaN.r ? x.r : result.r;\n result.g = isNaN.g ? x.g : result.g;\n result.b = isNaN.b ? x.b : result.b;\n result.a = isNaN.a ? x.a : result.a;\n\n return result;\n",js="\n vec4 result;\n\n result.r = (x.r >= 0.0) ? x.r : (exp(x.r) - 1.0);\n result.g = (x.g >= 0.0) ? x.g : (exp(x.g) - 1.0);\n result.b = (x.b >= 0.0) ? x.b : (exp(x.b) - 1.0);\n result.a = (x.a >= 0.0) ? x.a : (exp(x.a) - 1.0);\n\n return result;\n",Xs=function(t,e){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=t,this.userCode="\n vec4 unaryOperation(vec4 x) {\n "+e+"\n }\n\n void main() {\n vec4 x = getAAtOutCoords();\n vec4 y = unaryOperation(x);\n\n setOutput(y);\n }\n "},Ys=function(t){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!1,this.outputShape=t;var e=t.length,n=sa("rc",e),r=wa(e),o=function(t,e){if(1===t)return"rc";for(var n="",r=0;r<t;r++)n+=e[r],r<t-1&&(n+=",");return n}(e,n),a=n.slice(-2),i=e<=1?"rc":"vec2("+a.join(",")+")";this.userCode="\n void main() {\n "+r+" rc = getOutputCoords();\n vec4 packedInput = getA("+o+");\n\n setOutput(getChannel(packedInput, "+i+"));\n }\n "},$s={};function Qs(t,e){if(void 0===e&&(e=!1),"linear"===t)return e?Hs:Rs;if("relu"===t)return e?qs:ks;if("elu"===t)return e?js:As;if("relu6"===t)return e?Ks:Ss;if("prelu"===t)return e?Pa:Ma;throw new Error("Activation "+t+" has not been implemented for the WebGL backend.")}var Js=600;var Zs=function(t){function o(e){var n,r=t.call(this)||this;if(r.pendingRead=new WeakMap,r.pendingDisposal=new WeakSet,r.dataRefCount=new WeakMap,r.numBytesInGPU=0,r.uploadWaitMs=0,r.downloadWaitMs=0,r.warnedAboutMemory=!1,r.pendingDeletes=0,r.disposed=!1,!i().getBool("HAS_WEBGL"))throw new Error("WebGL is not supported on this device");if(null==e){var o=jt(i().getNumber("WEBGL_VERSION"));r.binaryCache=(n=i().getNumber("WEBGL_VERSION"))in $s?$s[n]:($s[n]={},$s[n]),r.gpgpu=new Bi(o),r.canvas=o.canvas,r.gpgpuCreatedLocally=!0}else r.gpgpu=e,r.binaryCache={},r.gpgpuCreatedLocally=!1,r.canvas=e.gl.canvas;return r.textureManager=new ps(r.gpgpu),r.numMBBeforeWarning=null==i().global.screen?1024:i().global.screen.height*i().global.screen.width*window.devicePixelRatio*Js/1024/1024,r.texData=new xo(r,Lt),r}return e(o,t),o.prototype.numDataIds=function(){return this.texData.numDataIds()+(this.cpuBackend?this.cpuBackend.numDataIds():0)-this.pendingDeletes},o.prototype.write=function(t,e,n){if(i().getBool("DEBUG")&&this.checkNumericalProblems(t),"complex64"===n&&null!=t)throw new Error("Cannot write to a complex64 dtype. Please use tf.complex(real, imag).");var r={};return this.texData.set(r,{shape:e,dtype:n,values:t,usage:zt.UPLOAD}),r},o.prototype.move=function(t,e,n,r){if(i().getBool("DEBUG")&&this.checkNumericalProblems(e),"complex64"===r)throw new Error("Cannot write to a complex64 dtype. Please use tf.complex(real, imag).");this.texData.set(t,{shape:n,dtype:r,values:e,usage:zt.UPLOAD})},o.prototype.readSync=function(t){var e=this.texData.get(t),n=e.values,r=e.dtype,o=e.complexTensors,a=e.slice,i=e.shape,s=e.isPacked;if(null!=a){var u=void 0;u=s?new Xs(i,Gs):new Cs(i,Gs);var c=this.runWebGLProgram(u,[{dataId:t,shape:i,dtype:r}],r),l=this.readSync(c.dataId);return this.disposeData(c.dataId),l}if(null!=n)return this.convertAndCacheOnCPU(t);if("string"===r)return n;var h,f,d=null!=this.activeTimers;(d&&(h=et()),"complex64"===r)?f=Vo(o.real.dataSync(),o.imag.dataSync()):f=this.getValuesFromTexture(t);return d&&(this.downloadWaitMs+=et()-h),this.convertAndCacheOnCPU(t,f)},o.prototype.read=function(t){return n(this,void 0,void 0,(function(){var e,n,o,a,s,u,c,l,h,f,d,p,v,m,g,y,x,b,w,C,E,R;return r(this,(function(r){switch(r.label){case 0:if(this.pendingRead.has(t))return e=this.pendingRead.get(t),[2,new Promise((function(t){return e.push(t)}))];if(n=this.texData.get(t),o=n.values,a=n.shape,s=n.slice,u=n.dtype,c=n.complexTensors,l=n.isPacked,null!=s)return h=void 0,h=l?new Xs(a,Gs):new Cs(a,Gs),f=this.runWebGLProgram(h,[{dataId:t,shape:a,dtype:u}],u),d=this.read(f.dataId),this.disposeData(f.dataId),[2,d];if(null!=o)return[2,this.convertAndCacheOnCPU(t)];if(!i().getBool("WEBGL_DOWNLOAD_FLOAT_ENABLED")&&2===i().getNumber("WEBGL_VERSION"))throw new Error("tensor.data() with WEBGL_DOWNLOAD_FLOAT_ENABLED=false and WEBGL_VERSION=2 not yet supported.");return p=null,"complex64"!==u&&i().get("WEBGL_BUFFER_SUPPORTED")&&(v=this.decode(t),m=this.texData.get(v.dataId),p=(R=this.gpgpu).createBufferFromTexture.apply(R,[m.texture].concat(Yt(a)))),this.pendingRead.set(t,[]),"complex64"===u?[3,2]:[4,this.gpgpu.createAndWaitForFence()];case 1:r.sent(),r.label=2;case 2:return"complex64"!==u?[3,4]:[4,Promise.all([c.real.data(),c.imag.data()])];case 3:return y=r.sent(),x=y[0],b=y[1],g=Vo(x,b),[3,5];case 4:null==p?g=this.getValuesFromTexture(t):(w=k(a),g=this.gpgpu.downloadFloat32MatrixFromBuffer(p,w)),r.label=5;case 5:return null!=v&&this.disposeData(v.dataId),C=this.convertAndCacheOnCPU(t,g),E=this.pendingRead.get(t),this.pendingRead.delete(t),E.forEach((function(t){return t(C)})),this.pendingDisposal.has(t)&&(this.pendingDisposal.delete(t),this.disposeData(t),this.pendingDeletes--),[2,C]}}))}))},o.prototype.checkNumericalProblems=function(t){if(null!=t)for(var e=0;e<t.length;e++){var n=t[e];if(!ee(n)){if(i().getBool("WEBGL_RENDER_FLOAT32_CAPABLE"))throw Error("The value "+n+" cannot be represented with your current settings. Consider enabling float32 rendering: 'tf.env().set('WEBGL_RENDER_FLOAT32_ENABLED', true);'");throw Error("The value "+n+" cannot be represented on this device.")}}},o.prototype.getValuesFromTexture=function(t){var e,n=this.texData.get(t),r=n.shape,o=n.dtype,a=n.isPacked,s=k(r);if(i().getBool("WEBGL_DOWNLOAD_FLOAT_ENABLED")){var u=this.decode(t),c=this.texData.get(u.dataId),l=(e=this.gpgpu).downloadMatrixFromPackedTexture.apply(e,[c.texture].concat(Yt(r))).subarray(0,s);return this.disposeData(u.dataId),l}var h=i().getBool("WEBGL_PACK")&&!0===a,f=h?Te(r):r,d=h?new ci(f):new ui(f),p=this.runWebGLProgram(d,[{shape:f,dtype:o,dataId:t}],"float32"),v=this.texData.get(p.dataId),m=this.gpgpu.downloadByteEncodedFloatMatrixFromOutputTexture(v.texture,v.texShape[0],v.texShape[1]).subarray(0,s);return this.disposeData(p.dataId),m},o.prototype.time=function(t){return n(this,void 0,void 0,(function(){var e,n,o,a,s,u,c;return r(this,(function(r){switch(r.label){case 0:return e=this.activeTimers,n=[],o=!1,null==this.programTimersStack?(this.programTimersStack=n,o=!0):this.activeTimers.push(n),this.activeTimers=n,t(),a=I(this.activeTimers.map((function(t){return t.query}))).filter((function(t){return null!=t})),s=I(this.activeTimers.map((function(t){return t.name}))).filter((function(t){return null!=t})),this.activeTimers=e,o&&(this.programTimersStack=null),u={uploadWaitMs:this.uploadWaitMs,downloadWaitMs:this.downloadWaitMs,kernelMs:null,wallMs:null},i().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_RELIABLE")>0?[4,Promise.all(a)]:[3,2];case 1:return c=r.sent(),u.kernelMs=w(c),u.getExtraProfileInfo=function(){return c.map((function(t,e){return{name:s[e],ms:t}})).map((function(t){return t.name+": "+t.ms})).join(", ")},[3,3];case 2:u.kernelMs={error:"WebGL query timers are not supported in this environment."},r.label=3;case 3:return this.uploadWaitMs=0,this.downloadWaitMs=0,[2,u]}}))}))},o.prototype.memory=function(){return{unreliable:!1,numBytesInGPU:this.numBytesInGPU}},o.prototype.startTimer=function(){return i().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_RELIABLE")>0?this.gpgpu.beginQuery():{startMs:et(),endMs:null}},o.prototype.endTimer=function(t){return i().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_RELIABLE")>0?(this.gpgpu.endQuery(),t):(t.endMs=et(),t)},o.prototype.getQueryTime=function(t){return n(this,void 0,void 0,(function(){var e;return r(this,(function(n){return i().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_RELIABLE")>0?[2,this.gpgpu.waitForQueryAndGetTime(t)]:[2,(e=t).endMs-e.startMs]}))}))},o.prototype.disposeData=function(t){if(!this.pendingDisposal.has(t)){if(this.pendingRead.has(t))return this.pendingDisposal.add(t),void this.pendingDeletes++;if(this.texData.has(t)){this.releaseGPUData(t);var e=this.texData.get(t).complexTensors;null!=e&&(e.real.dispose(),e.imag.dispose()),this.texData.delete(t)}}},o.prototype.releaseGPUData=function(t){var e=this.texData.get(t),n=e.texture,r=e.dtype,o=e.texShape,a=e.usage,i=e.isPacked,s=e.slice,u=s&&s.origDataId||t,c=this.dataRefCount.get(u);c>1?this.dataRefCount.set(u,c-1):(this.dataRefCount.delete(u),null!=n&&(this.numBytesInGPU-=this.computeBytes(o,r),this.textureManager.releaseTexture(n,o,a,i)));var l=this.texData.get(t);l.texture=null,l.texShape=null,l.isPacked=!1,l.slice=null},o.prototype.getTexture=function(t){return this.uploadToGPU(t),this.texData.get(t).texture},o.prototype.getDataInfo=function(t){return this.texData.get(t)},o.prototype.getCPUBackend=function(){return i().getBool("WEBGL_CPU_FORWARD")?(null==this.cpuBackend&&(this.cpuBackend=Lt.findBackend("cpu")),this.cpuBackend):null},o.prototype.shouldExecuteOnCPU=function(t,e){var n=this;return void 0===e&&(e=128),null!=this.getCPUBackend()&&t.every((function(t){return null==n.texData.get(t.dataId).texture&&t.size<e}))},o.prototype.getGPGPUContext=function(){return this.gpgpu},o.prototype.complex=function(t,e){var n=this.makeOutput(t.shape,"complex64");return this.texData.get(n.dataId).complexTensors={real:Lt.keep(t.clone()),imag:Lt.keep(e.clone())},n},o.prototype.real=function(t){return this.texData.get(t.dataId).complexTensors.real.clone()},o.prototype.imag=function(t){return this.texData.get(t.dataId).complexTensors.imag.clone()},o.prototype.slice=function(t,e,n){if(this.shouldExecuteOnCPU([t]))return this.cpuBackend.slice(t,e,n);if(0===k(n))return Fn([],n,t.dtype);var r=this.texData.get(t.dataId).isPacked,o=io(t.shape,e,n);if(r||!o){var a=i().getBool("WEBGL_PACK_ARRAY_OPERATIONS")?new fs(n):new ls(n),s=a.getCustomSetupFunc(e);return this.compileAndRun(a,[t],null,s)}return this.uploadToGPU(t.dataId),this.shallowSlice(t,e,n)},o.prototype.shallowSlice=function(t,e,n){var r=this.texData.get(t.dataId),o=this.makeOutput(n,t.dtype),a=this.texData.get(o.dataId);Object.assign(a,r),a.shape=n,a.dtype=t.dtype;var i=so(e,t.strides);r.slice&&(i+=r.slice.flatOffset),a.slice={flatOffset:i,origDataId:r.slice&&r.slice.origDataId||t.dataId};var s=this.dataRefCount.get(a.slice.origDataId)||1;return this.dataRefCount.set(a.slice.origDataId,s+1),o},o.prototype.stridedSlice=function(t,e,n,r){if(this.shouldExecuteOnCPU([t]))return this.cpuBackend.stridedSlice(t,e,n,r);var o=ro(e,n,r);if(o.some((function(t){return 0===t})))return Fn([],o);var a=new ds(e,r,o);return this.compileAndRun(a,[t])},o.prototype.reverse=function(t,e){var n=i().getBool("WEBGL_PACK_ARRAY_OPERATIONS")?new is(t.shape,e):new as(t.shape,e);return this.compileAndRun(n,[t])},o.prototype.concat=function(t,e){if("complex64"===t[0].dtype){var n=t.map((function(t){return Tn(t)})),r=t.map((function(t){return Nn(t)}));return Dn(this.concat(n,e),this.concat(r,e))}if(this.shouldExecuteOnCPU(t))return this.cpuBackend.concat(t,e);if(1===t.length)return t[0];if(t.length>i().getNumber("WEBGL_MAX_TEXTURES_IN_SHADER")){var o=Math.floor(t.length/2),a=this.concat(t.slice(0,o),e),s=this.concat(t.slice(o),e);return this.concat([a,s],e)}if(i().getBool("WEBGL_PACK_ARRAY_OPERATIONS")&&t[0].rank>1){var u=new Ga(t.map((function(t){return t.shape})),e);return this.compileAndRun(u,t)}var c=Sn(t.map((function(t){return t.shape})),e),l=t.map((function(t){return t.as2D(-1,k(t.shape.slice(e)))})),h=new za(l.map((function(t){return t.shape})));return this.compileAndRun(h,l).reshape(c)},o.prototype.neg=function(t){if(this.shouldExecuteOnCPU([t]))return this.cpuBackend.neg(t);if(i().getBool("WEBGL_PACK_UNARY_OPERATIONS"))return this.packedUnaryOp(t,Ts,t.dtype);var e=new Cs(t.shape,Ts);return this.compileAndRun(e,[t])},o.prototype.batchMatMul=function(t,e,n,r){var o=n?t.shape[2]:t.shape[1],a=r?e.shape[1]:e.shape[2],i=n?t.shape[1]:t.shape[2],s=t.shape[0];if((1===o||1===a)&&i>1e3){n&&(t=t.transpose([0,2,1])),r&&(e=e.transpose([0,2,1]));var u=1===a?t:t.as3D(s,i,1),c=1===a?2:1,l=1===a?e.as3D(s,1,i):e;return this.multiply(u,l).sum(c,!0)}var h=Dt(t.dtype,e.dtype),f=new Hi(t.shape,[s,o,a],n,r);return this.compileAndRun(f,[t,e],h)},o.prototype.fusedBatchMatMul=function(t){var e=t.a,n=t.b,r=t.transposeA,o=t.transposeB,a=t.bias,i=t.activation,s=t.preluActivationWeights,u=r?e.shape[2]:e.shape[1],c=o?n.shape[1]:n.shape[2],l=e.shape[0],h=Dt(e.dtype,n.dtype),f=null!=a,d=null!=s,p=i?Qs(i,!0):null,v=new Hi(e.shape,[l,u,c],r,o,f,p,d),m=[e,n];return a&&m.push(a),s&&m.push(s),this.compileAndRun(v,m,h)},o.prototype.multiply=function(t,e){if("complex64"===t.dtype){var n=this.texData.get(t.dataId),r=this.texData.get(e.dataId),o=new Na(Da,t.shape,e.shape),a=new Na(Ta,t.shape,e.shape),s=[this.makeComplexComponentTensorInfo(t,n.complexTensors.real),this.makeComplexComponentTensorInfo(t,n.complexTensors.imag),this.makeComplexComponentTensorInfo(e,r.complexTensors.real),this.makeComplexComponentTensorInfo(e,r.complexTensors.imag)],u=this.compileAndRun(o,s),c=this.compileAndRun(a,s),l=this.complex(u,c);return u.dispose(),c.dispose(),l}if(this.shouldExecuteOnCPU([t,e]))return this.cpuBackend.multiply(t,e);if(i().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,Oa,t.dtype);var h=new Ba(Oa,t.shape,e.shape);return this.compileAndRun(h,[t,e],t.dtype)},o.prototype.batchNormalization=function(t,e,n,r,o,a){var s=[t,e,n],u=null;null!=a&&(u=a.shape,s.push(a));var c=null;if(null!=o&&(c=o.shape,s.push(o)),i().getBool("WEBGL_PACK_NORMALIZATION")){var l=new Aa(t.shape,e.shape,n.shape,u,c,r);return this.compileAndRun(l,s)}var h=new Sa(t.shape,e.shape,n.shape,u,c,r);return this.compileAndRun(h,s)},o.prototype.localResponseNormalization4D=function(t,e,n,r,o){var a=i().getBool("WEBGL_PACK_NORMALIZATION")?new Vi(t.shape,e,n,r,o):new Wi(t.shape,e,n,r,o);return this.compileAndRun(a,[t])},o.prototype.LRNGrad=function(t,e,n,r,o,a,i){var s=new Ui(e.shape,r,o,a,i);return this.compileAndRun(s,[e,n,t])},o.prototype.tile=function(t,e){if("string"===t.dtype){var n=this.readSync(t.dataId).map((function(t){return ot(t)}));return ta(dr(t.shape,t.dtype,n),e)}var r=new gs(t.shape,e);return this.compileAndRun(r,[t])},o.prototype.pad=function(t,e,n){var r=i().getBool("WEBGL_PACK_ARRAY_OPERATIONS")?new Yi(t.shape,e,n):new Xi(t.shape,e,n);return this.compileAndRun(r,[t])},o.prototype.transpose=function(t,e){if(this.shouldExecuteOnCPU([t]))return this.cpuBackend.transpose(t,e);var n=i().getBool("WEBGL_PACK_ARRAY_OPERATIONS")?new xs(t.shape,e):new ys(t.shape,e);return this.compileAndRun(n,[t])},o.prototype.gather=function(t,e,n){if(this.shouldExecuteOnCPU([t,e]))return this.cpuBackend.gather(t,e,n);var r=new mi(t.shape,e.size,n);return this.compileAndRun(r,[t,e])},o.prototype.batchToSpaceND=function(t,e,n){C(t.rank<=4,(function(){return"batchToSpaceND for rank > 4 with a WebGL backend not implemented yet"}));var r=e.reduce((function(t,e){return t*e})),o=zr(t.shape,e,r),a=Gr(o.length,e.length),i=Hr(t.shape,e,r),s=qr(n,e.length),u=Kr(i,n,e.length);return t.reshape(o).transpose(a).reshape(i).slice(s,u)},o.prototype.spaceToBatchND=function(t,e,n){C(t.rank<=4,(function(){return"spaceToBatchND for rank > 4 with a WebGL backend not implemented yet"}));var r=e.reduce((function(t,e){return t*e})),o=[[0,0]];o.push.apply(o,n);for(var a=1+e.length;a<t.shape.length;++a)o.push([0,0]);var i=t.pad(o),s=zr(i.shape,e,r,!1),u=Gr(s.length,e.length,!1),c=Hr(i.shape,e,r,!1);return i.reshape(s).transpose(u).reshape(c)},o.prototype.reduce=function(t,e,n){var r=t.shape[0],o=t.shape[1],a=$r(o),i=new Ji({windowSize:a,inSize:o,batchSize:r},e),s=this.compileAndRun(i,[t],n);return 1===s.shape[1]?s:this.reduce(s,e,n)},o.prototype.argReduce=function(t,e,n){void 0===n&&(n=null);var r=t.shape[0],o=t.shape[1];null!=n&&(r=n.shape[0],o=n.shape[1]);var a=$r(o),i=new aa({windowSize:a,inSize:o,batchSize:r},e,null==n),s=[t];null!=n&&s.push(n);var u=this.compileAndRun(i,s,"int32");return 1===u.shape[1]?u:this.argReduce(t,e,u)},o.prototype.argReducePacked=function(t,e,n){void 0===n&&(n=null);var r=null!=n?n.shape:t.shape,o=$r(r[r.length-1]),a=new Ra(r,o,e,null==n),i=null==n?[t]:[t,n],s=this.compileAndRun(a,i,"int32");return s.rank===t.rank?this.argReducePacked(t,e,s):s},o.prototype.sum=function(t,e){Cn("sum",e,t.rank);var n=bn(t.shape,e),r=n[0],o=k(n[1]),a=t.as2D(-1,o),i=Tt(t.dtype);return this.reduce(a,"sum",i).reshape(r)},o.prototype.prod=function(t,e){if(this.shouldExecuteOnCPU([t]))return this.cpuBackend.prod(t,e);var n=bn(t.shape,e),r=n[0],o=k(n[1]),a=t.as2D(-1,o),i=Tt(t.dtype);return this.reduce(a,"prod",i).reshape(r)},o.prototype.unsortedSegmentSum=function(t,e,n){var r=0,o=En([r],t.rank),a=t;null!=o&&(a=t.transpose(o),r=In(1,t.rank)[0]);var i=function(t,e,n){for(var r=[],o=t.length,a=0;a<o;a++)a!==e?r.push(t[a]):r.push(n);return r}(a.shape,r,n),s=k([a.shape[r]]),u=a.as2D(-1,s),c=Tt(t.dtype),l=this.segOpCompute(u,"unsortedSegmentSum",e,c,n).reshape(i);return null!=o&&(l=l.transpose(Rn(o))),l},o.prototype.segOpCompute=function(t,e,n,r,o){var a=t.shape[0],i=t.shape[1],s=function(t,e){var n,r=!1;for(t<=Yr?(n=t,r=!0):n=Y(t,Math.floor(Math.sqrt(t)));!r;)n>e||n===t?r=!0:n=Y(t,n+1);return n}(i,o),u=new us({windowSize:s,inSize:i,batchSize:a,numSegments:o},e),c=this.compileAndRun(u,[t,n],r);return c.shape[1]===o?c:(n=Kn(0,o).tile([i/s]),this.segOpCompute(c,e,n,r,o))},o.prototype.argMinMaxReduce=function(t,e,n){var r=[e];if(Cn("arg"+n.charAt(0).toUpperCase()+n.slice(1),r,t.rank),!i().getBool("WEBGL_PACK_REDUCE")||t.rank<=2){var o=bn(t.shape,r),a=o[0],s=k(o[1]),u=t.as2D(-1,s);return this.argReduce(u,n).reshape(a)}return this.argReducePacked(t,n)},o.prototype.argMin=function(t,e){return this.argMinMaxReduce(t,e,"min")},o.prototype.argMax=function(t,e){return this.argMinMaxReduce(t,e,"max")},o.prototype.cumsum=function(t,e,n,r){if(e!==t.rank-1)throw new Error("WebGL cumsum shader expects an inner-most axis="+(t.rank-1)+" but got axis="+e);var o=new ni(t.shape,n,r);return this.compileAndRun(o,[t])},o.prototype.equal=function(t,e){if(i().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,"\n return vec4(equal(a, b));\n","bool");var n=new Ba("return float(a == b);",t.shape,e.shape);return this.compileAndRun(n,[t,e],"bool")},o.prototype.notEqual=function(t,e){if(i().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,"\n return vec4(notEqual(a, b));\n","bool");var n=new Ba("return float(a != b);",t.shape,e.shape);return this.compileAndRun(n,[t,e],"bool")},o.prototype.less=function(t,e){if(this.shouldExecuteOnCPU([t,e]))return this.cpuBackend.less(t,e);if(i().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,"\n return vec4(lessThan(a, b));\n","bool");var n=new Ba("return float(a < b);",t.shape,e.shape);return this.compileAndRun(n,[t,e],"bool")},o.prototype.lessEqual=function(t,e){if(i().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,"\n return vec4(lessThanEqual(a, b));\n","bool");var n=new Ba("return float(a <= b);",t.shape,e.shape);return this.compileAndRun(n,[t,e],"bool")},o.prototype.greater=function(t,e){if(this.shouldExecuteOnCPU([t,e]))return this.cpuBackend.greater(t,e);if(i().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,"\n return vec4(greaterThan(a, b));\n","bool");var n=new Ba("return float(a > b);",t.shape,e.shape);return this.compileAndRun(n,[t,e],"bool")},o.prototype.greaterEqual=function(t,e){if(i().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,"\n return vec4(greaterThanEqual(a, b));\n","bool");var n=new Ba("return float(a >= b);",t.shape,e.shape);return this.compileAndRun(n,[t,e],"bool")},o.prototype.logicalNot=function(t){var e=new Cs(t.shape,"return float(!(x >= 1.0));");return this.compileAndRun(e,[t])},o.prototype.logicalAnd=function(t,e){if(i().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,"\n return vec4(\n vec4(greaterThanEqual(a, vec4(1.0))) *\n vec4(greaterThanEqual(b, vec4(1.0))));\n","bool");var n=new Ba("return float(a >= 1.0 && b >= 1.0);",t.shape,e.shape);return this.compileAndRun(n,[t,e],"bool")},o.prototype.logicalOr=function(t,e){if(i().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,"\n return min(\n vec4(greaterThanEqual(a, vec4(1.0))) +\n vec4(greaterThanEqual(b, vec4(1.0))),\n vec4(1.0));\n","bool");var n=new Ba("return float(a >= 1.0 || b >= 1.0);",t.shape,e.shape);return this.compileAndRun(n,[t,e],"bool")},o.prototype.select=function(t,e,n){var r=new cs(t.rank,e.shape,e.rank);return this.compileAndRun(r,[t,e,n],Dt(e.dtype,n.dtype))},o.prototype.where=function(t){dn("tf.where() in webgl locks the UI thread. Call tf.whereAsync() instead");var e=t.dataSync();return na(t.shape,e)},o.prototype.topk=function(t,e,n){return ea(t.dataSync(),t.shape,t.dtype,e)},o.prototype.min=function(t,e){Cn("min",e,t.rank);var n=bn(t.shape,e),r=n[0],o=k(n[1]),a=t.as2D(-1,o);return this.reduce(a,"min",a.dtype).reshape(r)},o.prototype.minimum=function(t,e){if(this.shouldExecuteOnCPU([t,e]))return this.cpuBackend.minimum(t,e);var n=i().getBool("WEBGL_PACK_BINARY_OPERATIONS")?new La("\n vec4 result = vec4(min(a, b));\n vec4 isNaN = min(vec4(isnan(a)) + vec4(isnan(b)), vec4(1.0));\n \n result.r = isNaN.r > 0. ? NAN : result.r;\n result.g = isNaN.g > 0. ? NAN : result.g;\n result.b = isNaN.b > 0. ? NAN : result.b;\n result.a = isNaN.a > 0. ? NAN : result.a;\n\n return result;\n",t.shape,e.shape):new Ba("\n if (isnan(a)) return a;\n if (isnan(b)) return b;\n\n return min(a, b);\n",t.shape,e.shape);return this.compileAndRun(n,[t,e])},o.prototype.mod=function(t,e){var n=i().getBool("WEBGL_PACK_BINARY_OPERATIONS")?new La("\n vec4 result = mod(a, b);\n vec4 isNaN = vec4(equal(b, vec4(0.0)));\n \n result.r = isNaN.r > 0. ? NAN : result.r;\n result.g = isNaN.g > 0. ? NAN : result.g;\n result.b = isNaN.b > 0. ? NAN : result.b;\n result.a = isNaN.a > 0. ? NAN : result.a;\n\n return result;\n",t.shape,e.shape):new Ba("if (b == 0.0) return NAN;\n return mod(a, b);",t.shape,e.shape);return this.compileAndRun(n,[t,e])},o.prototype.max=function(t,e){if(this.shouldExecuteOnCPU([t]))return this.cpuBackend.max(t,e);Cn("max",e,t.rank);var n=bn(t.shape,e),r=n[0],o=k(n[1]),a=t.as2D(-1,o);return this.reduce(a,"max",a.dtype).reshape(r)},o.prototype.maximum=function(t,e){if(this.shouldExecuteOnCPU([t,e]))return this.cpuBackend.maximum(t,e);var n=i().getBool("WEBGL_PACK_BINARY_OPERATIONS")?new La("\n vec4 result = vec4(max(a, b));\n vec4 isNaN = min(vec4(isnan(a)) + vec4(isnan(b)), vec4(1.0));\n \n result.r = isNaN.r > 0. ? NAN : result.r;\n result.g = isNaN.g > 0. ? NAN : result.g;\n result.b = isNaN.b > 0. ? NAN : result.b;\n result.a = isNaN.a > 0. ? NAN : result.a;\n\n return result;\n",t.shape,e.shape):new Ba("\n if (isnan(a)) return a;\n if (isnan(b)) return b;\n\n return max(a, b);\n",t.shape,e.shape);return this.compileAndRun(n,[t,e])},o.prototype.all=function(t,e){Cn("all",e,t.rank);var n=bn(t.shape,e),r=n[0],o=k(n[1]),a=t.as2D(-1,o);return this.reduce(a,"all",a.dtype).reshape(r)},o.prototype.any=function(t,e){Cn("any",e,t.rank);var n=bn(t.shape,e),r=n[0],o=k(n[1]),a=t.as2D(-1,o);return this.reduce(a,"any",a.dtype).reshape(r)},o.prototype.realDivide=function(t,e){if(i().getBool("WEBGL_PACK_BINARY_OPERATIONS")){return this.packedBinaryOp(t,e,"\n // vec4 one = vec4(equal(a, b));\n // return one + (vec4(1.0) - one) * a / b;\n vec4 result = a / b;\n if(a.x == b.x) {\n result.x = 1.;\n }\n if(a.y == b.y) {\n result.y = 1.;\n }\n if(a.z == b.z) {\n result.z = 1.;\n }\n if(a.w == b.w) {\n result.w = 1.;\n }\n\n return result;\n","float32",!0)}var n=new Ba("\nif (a == b) {\n return 1.0;\n};\nreturn a / b;",t.shape,e.shape);return this.compileAndRun(n,[t,e],"float32")},o.prototype.floorDiv=function(t,e){if(i().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,"\n ivec4 ia = round(a);\n ivec4 ib = round(b);\n bvec4 cond = notEqual(ib, ivec4(0));\n ivec4 result = ivec4(0);\n vec4 s = sign(a) * sign(b);\n\n // Windows (D3D) wants guaranteed non-zero int division at compile-time.\n if (cond[0]) {\n result[0] = idiv(ia[0], ib[0], s[0]);\n }\n if (cond[1]) {\n result[1] = idiv(ia[1], ib[1], s[1]);\n }\n if (cond[2]) {\n result[2] = idiv(ia[2], ib[2], s[2]);\n }\n if (cond[3]) {\n result[3] = idiv(ia[3], ib[3], s[3]);\n }\n return vec4(result);\n","int32");var n=new Ba("\n float s = sign(a) * sign(b);\n int ia = round(a);\n int ib = round(b);\n if (ib != 0) {\n // Windows (D3D) wants guaranteed non-zero int division at compile-time.\n return float(idiv(ia, ib, s));\n } else {\n return NAN;\n }\n",t.shape,e.shape);return this.compileAndRun(n,[t,e],"int32")},o.prototype.add=function(t,e){if("complex64"===t.dtype&&"complex64"===e.dtype)return this.complexSeparableBinaryOp(t,e,Fa);if(this.shouldExecuteOnCPU([t,e]))return this.cpuBackend.add(t,e);var n=Dt(t.dtype,e.dtype);if(i().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,Fa,n);var r=new Ba(Fa,t.shape,e.shape);return this.compileAndRun(r,[t,e],n)},o.prototype.packedUnaryOp=function(t,e,n){var r=new Xs(t.shape,e);return this.compileAndRun(r,[t],n)},o.prototype.packedBinaryOp=function(t,e,n,r,o){void 0===o&&(o=!1);var a=new La(n,t.shape,e.shape,o);return this.compileAndRun(a,[t,e],r)},o.prototype.complexSeparableBinaryOp=function(t,e,n){var r=this,o=this.texData.get(t.dataId),a=this.texData.get(e.dataId),i=[[o.complexTensors.real,a.complexTensors.real],[o.complexTensors.imag,a.complexTensors.imag]].map((function(o){var a=o[0],i=o[1],s=r.makeComplexComponentTensorInfo(t,a),u=r.makeComplexComponentTensorInfo(e,i),c=new Ba(n,t.shape,e.shape);return r.compileAndRun(c,[s,u],Dt(a.dtype,i.dtype))})),s=i[0],u=i[1],c=this.complex(s,u);return s.dispose(),u.dispose(),c},o.prototype.makeComplexComponentTensorInfo=function(t,e){return{dataId:e.dataId,dtype:e.dtype,shape:t.shape}},o.prototype.addN=function(t){if(1===t.length)return t[0];if(t.length>i().get("WEBGL_MAX_TEXTURES_IN_SHADER")){var e=Math.floor(t.length/2),n=this.addN(t.slice(0,e)),r=this.addN(t.slice(e));return this.addN([n,r])}var o=t.map((function(t){return t.dtype})).reduce((function(t,e){return Dt(t,e)})),a=t.map((function(t){return t.shape})),s=i().getBool("WEBGL_PACK")?new oa(t[0].shape,a):new ra(t[0].shape,a);return this.compileAndRun(s,t,o)},o.prototype.subtract=function(t,e){if("complex64"===t.dtype&&"complex64"===e.dtype)return this.complexSeparableBinaryOp(t,e,_a);if(this.shouldExecuteOnCPU([t,e]))return this.cpuBackend.subtract(t,e);var n=Dt(t.dtype,e.dtype);if(i().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,_a,t.dtype);var r=new Ba(_a,t.shape,e.shape);return this.compileAndRun(r,[t,e],n)},o.prototype.pow=function(t,e){var n=i().getBool("WEBGL_PACK_BINARY_OPERATIONS")?new La("\n // isModRound1 has 1 for components with round(mod(b, 2.0)) == 1, 0 otherwise.\n vec4 isModRound1 = vec4(equal(round(mod(b, 2.0)), ivec4(1)));\n vec4 multiplier = sign(a) * isModRound1 + (vec4(1.0) - isModRound1);\n vec4 result = multiplier * pow(abs(a), b);\n\n // Ensure that a^0 = 1, including 0^0 = 1 as this correspond to TF and JS\n bvec4 isExpZero = equal(b, vec4(0.0));\n result.r = isExpZero.r ? 1.0 : result.r;\n result.g = isExpZero.g ? 1.0 : result.g;\n result.b = isExpZero.b ? 1.0 : result.b;\n result.a = isExpZero.a ? 1.0 : result.a;\n\n vec4 isNaN = vec4(lessThan(a, vec4(0.0))) * vec4(lessThan(floor(b), b));\n \n result.r = isNaN.r > 0. ? NAN : result.r;\n result.g = isNaN.g > 0. ? NAN : result.g;\n result.b = isNaN.b > 0. ? NAN : result.b;\n result.a = isNaN.a > 0. ? NAN : result.a;\n\n return result;\n",t.shape,e.shape):new Ba("\nif(a < 0.0 && floor(b) < b){\n return NAN;\n}\nif (b == 0.0) {\n return 1.0;\n}\nreturn (round(mod(b, 2.0)) != 1) ?\n pow(abs(a), b) : sign(a) * pow(abs(a), b);\n",t.shape,e.shape),r=Dt(t.dtype,e.dtype);return this.compileAndRun(n,[t,e],r)},o.prototype.ceil=function(t){if(this.shouldExecuteOnCPU([t]))return this.cpuBackend.ceil(t);if(i().getBool("WEBGL_PACK_UNARY_OPERATIONS"))return this.packedUnaryOp(t,Ns,t.dtype);var e=new Cs(t.shape,Ns);return this.compileAndRun(e,[t])},o.prototype.floor=function(t){if(this.shouldExecuteOnCPU([t]))return this.cpuBackend.floor(t);if(i().getBool("WEBGL_PACK_UNARY_OPERATIONS"))return this.packedUnaryOp(t,Fs,t.dtype);var e=new Cs(t.shape,Fs);return this.compileAndRun(e,[t])},o.prototype.sign=function(t){var e=new Cs(t.shape,"\n if (isnan(x)) { return 0.0; }\n return sign(x);\n");return this.compileAndRun(e,[t])},o.prototype.isNaN=function(t){var e=new Cs(t.shape,"return float(isnan(x));");return this.compileAndRun(e,[t],"bool")},o.prototype.isInf=function(t){var e=new Cs(t.shape,"return float(isinf(x));");return this.compileAndRun(e,[t],"bool")},o.prototype.isFinite=function(t){var e=new Cs(t.shape,"return float(!isnan(x) && !isinf(x));");return this.compileAndRun(e,[t],"bool")},o.prototype.round=function(t){var e=new Cs(t.shape,"\n // OpenGL ES does not support round function.\n // The algorithm is based on banker's rounding.\n float base = floor(x);\n if ((x - base) < 0.5) {\n return floor(x);\n } else if ((x - base) > 0.5) {\n return ceil(x);\n } else {\n if (mod(base, 2.0) == 0.0) {\n return base;\n } else {\n return base + 1.0;\n }\n }\n");return this.compileAndRun(e,[t])},o.prototype.exp=function(t){if(this.shouldExecuteOnCPU([t]))return this.cpuBackend.exp(t);if(i().getBool("WEBGL_PACK_UNARY_OPERATIONS"))return this.packedUnaryOp(t,_s,t.dtype);var e=new Cs(t.shape,_s);return this.compileAndRun(e,[t])},o.prototype.expm1=function(t){if(this.shouldExecuteOnCPU([t]))return this.cpuBackend.expm1(t);if(i().getBool("WEBGL_PACK_UNARY_OPERATIONS"))return this.packedUnaryOp(t,Os,t.dtype);var e=new Cs(t.shape,Os);return this.compileAndRun(e,[t])},o.prototype.softmax=function(t,e){var n=O([e],t.shape),r=this.max(t,n),o=wn(r.shape,n),a=this.subtract(t,r.reshape(o)),i=this.exp(a),s=this.sum(i,n).reshape(o);return this.realDivide(i,s)},o.prototype.log=function(t){if(this.shouldExecuteOnCPU([t]))return this.cpuBackend.log(t);if(i().getBool("WEBGL_PACK_UNARY_OPERATIONS"))return this.packedUnaryOp(t,"\n vec4 result = log(x);\n vec4 isNaN = vec4(lessThan(x, vec4(0.0)));\n result.r = isNaN.r == 1.0 ? NAN : result.r;\n result.g = isNaN.g == 1.0 ? NAN : result.g;\n result.b = isNaN.b == 1.0 ? NAN : result.b;\n result.a = isNaN.a == 1.0 ? NAN : result.a;\n\n return result;\n",t.dtype);var e=new Cs(t.shape,"if (x < 0.0) return NAN;\n return log(x);");return this.compileAndRun(e,[t])},o.prototype.log1p=function(t){var e=new Cs(t.shape,"return log(1.0 + x);");return this.compileAndRun(e,[t])},o.prototype.sqrt=function(t){var e=new Cs(t.shape,"return sqrt(x);");return this.compileAndRun(e,[t])},o.prototype.rsqrt=function(t){if(this.shouldExecuteOnCPU([t]))return this.cpuBackend.rsqrt(t);var e=new Cs(t.shape,"return inversesqrt(x);");return this.compileAndRun(e,[t])},o.prototype.reciprocal=function(t){var e=new Cs(t.shape,"return 1.0 / x;");return this.compileAndRun(e,[t])},o.prototype.relu=function(t){var e;return e=i().getBool("WEBGL_PACK")?new Xs(t.shape,qs):new Cs(t.shape,ks),this.compileAndRun(e,[t])},o.prototype.relu6=function(t){var e;return e=i().getBool("WEBGL_PACK")?new Xs(t.shape,Ks):new Cs(t.shape,Ss),this.compileAndRun(e,[t])},o.prototype.prelu=function(t,e){var n=i().getBool("WEBGL_PACK_BINARY_OPERATIONS")?new La(Pa,t.shape,e.shape):new Ba(Ma,t.shape,e.shape);return this.compileAndRun(n,[t,e])},o.prototype.elu=function(t){if(i().getBool("WEBGL_PACK_UNARY_OPERATIONS"))return this.packedUnaryOp(t,js,t.dtype);var e=new Cs(t.shape,As);return this.compileAndRun(e,[t])},o.prototype.eluDer=function(t,e){var n=i().getBool("WEBGL_PACK_BINARY_OPERATIONS")?new La("\n vec4 bGTEZero = vec4(greaterThanEqual(b, vec4(0.)));\n return (bGTEZero * a) + ((vec4(1.0) - bGTEZero) * (a * (b + vec4(1.0))));\n",t.shape,e.shape):new Ba("return (b >= 1.0) ? a : a * (b + 1.0);",t.shape,e.shape);return this.compileAndRun(n,[t,e])},o.prototype.selu=function(t){var e=new Cs(t.shape,Ds);return this.compileAndRun(e,[t])},o.prototype.int=function(t){var e=new Cs(t.shape,"return float(int(x));");return this.compileAndRun(e,[t],"int32")},o.prototype.clip=function(t,e,n){var r,o=(r=i().getBool("WEBGL_PACK_CLIP")?new Ua(t.shape):new Wa(t.shape)).getCustomSetupFunc(e,n);return this.compileAndRun(r,[t],null,o)},o.prototype.abs=function(t){if(this.shouldExecuteOnCPU([t]))return this.cpuBackend.abs(t);if(i().getBool("WEBGL_PACK_UNARY_OPERATIONS"))return this.packedUnaryOp(t,Is,t.dtype);var e=new Cs(t.shape,Is);return this.compileAndRun(e,[t])},o.prototype.complexAbs=function(t){var e=this.texData.get(t.dataId),n=new Va(t.shape),r=[this.makeComplexComponentTensorInfo(t,e.complexTensors.real),this.makeComplexComponentTensorInfo(t,e.complexTensors.imag)];return this.compileAndRun(n,r)},o.prototype.sigmoid=function(t){var e=new Cs(t.shape,"return 1.0 / (1.0 + exp(-1.0 * x));");return this.compileAndRun(e,[t])},o.prototype.softplus=function(t){var e=new Cs(t.shape,"\n float epsilon = 1.1920928955078125e-7;\n float threshold = log(epsilon) + 2.0;\n\n bool too_large = x > -threshold;\n bool too_small = x < threshold;\n\n float result;\n float exp_x = exp(x);\n\n if (too_large){\n result = x;\n }\n else if (too_small){\n result = exp_x;\n }\n else{\n result = log(exp_x + 1.0);\n }\n return result;\n");return this.compileAndRun(e,[t])},o.prototype.sin=function(t){var e=new Cs(t.shape,Ms);return this.compileAndRun(e,[t])},o.prototype.cos=function(t){var e=new Cs(t.shape,Bs);return this.compileAndRun(e,[t])},o.prototype.tan=function(t){var e=new Cs(t.shape,"return tan(x);");return this.compileAndRun(e,[t])},o.prototype.asin=function(t){var e=new Cs(t.shape,Ps);return this.compileAndRun(e,[t])},o.prototype.acos=function(t){var e=new Cs(t.shape,Ls);return this.compileAndRun(e,[t])},o.prototype.atan=function(t){var e=new Cs(t.shape,Ws);return this.compileAndRun(e,[t])},o.prototype.atan2=function(t,e){var n=i().getBool("WEBGL_PACK_BINARY_OPERATIONS")?new La("\n vec4 result = atan(a, b);\n vec4 isNaN = min(vec4(isnan(a)) + vec4(isnan(b)), vec4(1.0));\n \n result.r = isNaN.r > 0. ? NAN : result.r;\n result.g = isNaN.g > 0. ? NAN : result.g;\n result.b = isNaN.b > 0. ? NAN : result.b;\n result.a = isNaN.a > 0. ? NAN : result.a;\n\n return result;\n",t.shape,e.shape):new Ba("\n if (isnan(a)) return a;\n if (isnan(b)) return b;\n\n return atan(a, b);\n",t.shape,e.shape);return this.compileAndRun(n,[t,e])},o.prototype.sinh=function(t){var e=new Cs(t.shape,"\n float e2x = exp(x);\n return (e2x - 1.0 / e2x) / 2.0;\n");return this.compileAndRun(e,[t])},o.prototype.cosh=function(t){var e=new Cs(t.shape,"\n float e2x = exp(-x);\n return (e2x + 1.0 / e2x) / 2.0;\n");return this.compileAndRun(e,[t])},o.prototype.tanh=function(t){var e=new Cs(t.shape,"\n float e2x = exp(-2.0 * abs(x));\n return sign(x) * (1.0 - e2x) / (1.0 + e2x);\n");return this.compileAndRun(e,[t])},o.prototype.asinh=function(t){var e=new Cs(t.shape,Us);return this.compileAndRun(e,[t])},o.prototype.acosh=function(t){var e=new Cs(t.shape,Vs);return this.compileAndRun(e,[t])},o.prototype.atanh=function(t){var e=new Cs(t.shape,zs);return this.compileAndRun(e,[t])},o.prototype.erf=function(t){var e=new Cs(t.shape,'\n // Error function is calculated approximately with elementary function.\n // See "Handbook of Mathematical Functions with Formulas,\n // Graphs, and Mathematical Tables", Abramowitz and Stegun.\n float p = 0.3275911;\n float a1 = 0.254829592;\n float a2 = -0.284496736;\n float a3 = 1.421413741;\n float a4 = -1.453152027;\n float a5 = 1.061405429;\n\n float sign = sign(x);\n x = abs(x);\n float t = 1.0 / (1.0 + p * x);\n return sign * (1.0 - (((((a5*t + a4)*t) + a3)*t + a2)*t + a1)*t*exp(-x*x));\n');return this.compileAndRun(e,[t])},o.prototype.step=function(t,e){var n=new Cs(t.shape,function(t){return void 0===t&&(t=0),Es+"\n return x > 0.0 ? 1.0 : float("+t+");\n "}(e));return this.compileAndRun(n,[t])},o.prototype.conv2dByMatMul=function(t,e,n,r,o,a){var s=t.shape,u=this.texData.get(t.dataId),c=n.inChannels,l=s[0]*s[1]*s[2],h=n.outChannels,f="channelsLast"===n.dataFormat,d=(1===l||1===h)&&c>1e3,p=s[2]%2!=0&&!!u.isPacked;if(d||!i().getBool("WEBGL_LAZILY_UNPACK")||!i().getBool("WEBGL_PACK_BINARY_OPERATIONS")||!p){var v=f?s[0]*s[1]*s[2]:s[0]*s[2]*s[3],m=this.reshape(t,[1,v,n.inChannels]),g=this.reshape(e,[1,n.inChannels,n.outChannels]);return this.reshape(this.fusedBatchMatMul({a:m,b:g,transposeA:!1,transposeB:!1,bias:r,activation:o,preluActivationWeights:a}),n.outShape)}var y=f?s[0]*s[1]*(s[2]+1):s[0]*s[2]*(s[3]+1),x={dataId:t.dataId,shape:[1,y,n.inChannels],dtype:t.dtype},b=u.shape;u.shape=u.shape.slice(),u.shape[u.shape.length-2]++,C(_e(u.shape,x.shape),(function(){return"packed reshape "+u.shape+" to "+x.shape+" isn't free"}));var w=this.reshape(e,[1,n.inChannels,n.outChannels]),E=this.fusedBatchMatMul({a:x,b:w,transposeA:!1,transposeB:!1,bias:r,activation:o,preluActivationWeights:a}),R=this.texData.get(E.dataId);return C(R.isPacked,(function(){return"batchMatMul result is expected to be packed"})),u.shape=b,R.shape=n.outShape,Lt.makeTensorFromDataId(E.dataId,n.outShape,E.dtype)},o.prototype.conv2dWithIm2Row=function(t,e,n,r,o,a){var i=n.filterWidth,s=n.filterHeight,u=n.inChannels,c=n.outWidth,l=n.outHeight,h="channelsLast"===n.dataFormat,f=i*s*u,d=l*c,p=[f,d],v=t.squeeze([0]),m=e.reshape([1,f,-1]),g=new Li(p,v.shape,n),y=this.compileAndRun(g,[v]).reshape([1,p[0],p[1]]),x=null!=r,b=null!=a,w=o?Qs(o,!0):null,C=new Hi(y.shape,[1,d,n.outChannels],!0,!1,x,w,b),E=[y,m];r&&E.push(r),b&&E.push(a);var R=this.compileAndRun(C,E);return h?R.reshape([1,l,c,n.outChannels]):R.reshape([1,n.outChannels,l,c])},o.prototype.fusedConv2d=function(t){var e=t.input,n=t.filter,r=t.convInfo,o=t.bias,a=t.activation,s=t.preluActivationWeights;if(1===r.filterHeight&&1===r.filterWidth&&1===r.dilationHeight&&1===r.dilationWidth&&1===r.strideHeight&&1===r.strideWidth&&("SAME"===r.padInfo.type||"VALID"===r.padInfo.type))return this.conv2dByMatMul(e,n,r,o,a,s);if(i().getBool("WEBGL_CONV_IM2COL")&&1===e.shape[0])return this.conv2dWithIm2Row(e,n,r,o,a,s);var u=null!=o,c=null!=s,l=a?Qs(a,!1):null,h=new Qa(r,u,l,c),f=[e,n];return o&&f.push(o),s&&f.push(s),this.compileAndRun(h,f)},o.prototype.conv2d=function(t,e,n){if(1===n.filterHeight&&1===n.filterWidth&&1===n.dilationHeight&&1===n.dilationWidth&&1===n.strideHeight&&1===n.strideWidth&&("SAME"===n.padInfo.type||"VALID"===n.padInfo.type))return this.conv2dByMatMul(t,e,n);if(i().getBool("WEBGL_CONV_IM2COL")&&1===t.shape[0])return this.conv2dWithIm2Row(t,e,n);var r=new Qa(n);return this.compileAndRun(r,[t,e])},o.prototype.conv2dDerInput=function(t,e,n){var r=new Ka(n);return this.compileAndRun(r,[t,e])},o.prototype.conv2dDerFilter=function(t,e,n){var r=new qa(n);return this.compileAndRun(r,[t,e])},o.prototype.fusedDepthwiseConv2D=function(t){var e,n=t.input,r=t.filter,o=t.convInfo,a=t.bias,s=t.activation,u=t.preluActivationWeights,c=i().getBool("WEBGL_PACK_DEPTHWISECONV")&&o.strideWidth<=2&&o.outChannels/o.inChannels==1,l=s?Qs(s,c):null,h=[n,r],f=null!=a,d=null!=u;return f&&h.push(a),d&&h.push(u),c?(e=new ti(o,f,l,d),this.compileAndRun(e,h)):(e=new Za(o,f,l,d),this.compileAndRun(e,h))},o.prototype.depthwiseConv2D=function(t,e,n){var r;return i().getBool("WEBGL_PACK_DEPTHWISECONV")&&n.strideWidth<=2&&n.outChannels/n.inChannels==1?(r=new ti(n),this.compileAndRun(r,[t,e])):(r=new Za(n),this.compileAndRun(r,[t,e]))},o.prototype.depthwiseConv2DDerInput=function(t,e,n){var r=new $a(n);return this.compileAndRun(r,[t,e])},o.prototype.depthwiseConv2DDerFilter=function(t,e,n){var r=new Ya(n);return this.compileAndRun(r,[t,e])},o.prototype.conv3d=function(t,e,n){var r=new Ja(n);return this.compileAndRun(r,[t,e])},o.prototype.conv3dDerInput=function(t,e,n){var r=new Xa(n);return this.compileAndRun(r,[t,e])},o.prototype.conv3dDerFilter=function(t,e,n){var r=new ja(n);return this.compileAndRun(r,[t,e])},o.prototype.maxPool=function(t,e){var n=new $i(e,"max",!1);return this.compileAndRun(n,[t])},o.prototype.avgPool=function(t,e){var n=new $i(e,"avg",!1);return this.compileAndRun(n,[t],"float32")},o.prototype.maxPoolBackprop=function(t,e,n,r){var o=new $i(r,"max",!0),a=this.compileAndRun(o,[e]),i=new zi(r),s=this.compileAndRun(i,[t,a],e.dtype);return a.dispose(),s},o.prototype.avgPoolBackprop=function(t,e,n){var r=new Ia(n);return this.compileAndRun(r,[t],e.dtype)},o.prototype.cast=function(t,e){return Po(t,e,this)},o.prototype.unstack=function(t,e){for(var n=t.shape[e],r=new Array(t.rank-1),o=0,a=0;a<t.rank;a++)a!==e&&(r[o++]=t.shape[a]);var i=new Array(t.rank).fill(0),s=t.shape.slice();s[e]=1;var u=new Array(n);for(a=0;a<u.length;a++)i[e]=a,u[a]=this.slice(t,i,s).reshape(r);return u},o.prototype.avgPool3d=function(t,e){var n=new Qi(e,"avg",!1);return this.compileAndRun(n,[t],"float32")},o.prototype.avgPool3dBackprop=function(t,e,n){var r=new ka(n);return this.compileAndRun(r,[t],e.dtype)},o.prototype.maxPool3d=function(t,e){var n=new Qi(e,"max",!1);return this.compileAndRun(n,[t],"float32")},o.prototype.maxPool3dBackprop=function(t,e,n,r){var o=new Qi(r,"max",!0),a=this.compileAndRun(o,[e]),i=new Gi(r),s=this.compileAndRun(i,[t,a],e.dtype);return a.dispose(),s},o.prototype.reshape=function(t,e){var n=this.texData.get(t.dataId);if(n.isPacked&&!_e(t.shape,e)&&(null===n.texture||!_e(n.shape,e))){var r=this.packedReshape(t,e);return Lt.makeTensorFromDataId(r.dataId,r.shape,r.dtype)}return Lo(t,e)},o.prototype.resizeBilinear=function(t,e,n,r){var o=i().getBool("WEBGL_PACK_IMAGE_OPERATIONS")?new ns(t.shape,e,n,r):new es(t.shape,e,n,r);return this.compileAndRun(o,[t],"float32")},o.prototype.resizeBilinearBackprop=function(t,e,n){var r=new ts(t,e,n);return this.compileAndRun(r,[t])},o.prototype.resizeNearestNeighbor=function(t,e,n,r){var o=new os(t.shape,e,n,r);return this.compileAndRun(o,[t])},o.prototype.resizeNearestNeighborBackprop=function(t,e,n){var r=new rs(t,e,n);return this.compileAndRun(r,[t])},o.prototype.multinomial=function(t,e,n,r){var o=e?t:go(t),a=o.shape[0],i=o.shape[1],s=new qi(a,i,n),u=s.getCustomSetupFunc(r);return this.compileAndRun(s,[o],"int32",u)},o.prototype.oneHot=function(t,e,n,r){var o=new Ki(t.size,e,n,r);return this.compileAndRun(o,[t])},o.prototype.diag=function(t){var e=new si(t.size);return this.compileAndRun(e,[t])},o.prototype.nonMaxSuppression=function(t,e,n,r,o){return dn("tf.nonMaxSuppression() in webgl locks the UI thread. Call tf.nonMaxSuppressionAsync() instead"),jo(t.dataSync(),e.dataSync(),n,r,o)},o.prototype.cropAndResize=function(t,e,n,r,o,a){var i=new ei(t.shape,e.shape,r,o,a);return this.compileAndRun(i,[t,e,n],"float32")},o.prototype.depthToSpace=function(t,e,n){C(e>1,(function(){return"blockSize should be > 1 for depthToSpace, but was: "+e}));var r=t.shape[0],o="NHWC"===n?t.shape[1]:t.shape[2],a="NHWC"===n?t.shape[2]:t.shape[3],i="NHWC"===n?t.shape[3]:t.shape[1],s=o*e,u=a*e,c=i/(e*e),l=new ii("NHWC"===n?[r,s,u,c]:[r,c,s,u],e,n);return this.compileAndRun(l,[t])},o.prototype.split=function(t,e,n){return Zo(t,e,n)},o.prototype.scatterND=function(t,e,n){var r=Zr(0,t,n),o=r.sliceRank,a=r.numUpdates,i=r.sliceSize,s=r.strides,u=r.outputSize,c=[u/i,i],l=t.reshape([a,o]),h=e.reshape([a,i]);if(0===u)return Lo(Fn([]),n);var f=On(0),d=new ss(a,o,l.rank,h.rank,s,c);return this.compileAndRun(d,[h,l,f]).reshape(n)},o.prototype.sparseToDense=function(t,e,n,r){var o=Zr(0,t,n),a=o.sliceRank,i=o.numUpdates,s=o.strides,u=o.outputSize,c=new ss(i,a,t.rank,e.rank,s,[u,1],!1);return this.compileAndRun(c,[e,t,r]).reshape(n)},o.prototype.fft=function(t){return this.fftImpl(t,!1)},o.prototype.ifft=function(t){return this.fftImpl(t,!0)},o.prototype.fftImpl=function(t,e){var n=this.texData.get(t.dataId),r=new pi(fi,t.shape,e),o=new pi(di,t.shape,e),a=[this.makeComplexComponentTensorInfo(t,n.complexTensors.real),this.makeComplexComponentTensorInfo(t,n.complexTensors.imag)],i=this.compileAndRun(r,a),s=this.compileAndRun(o,a),u=this.complex(i,s).as2D(t.shape[0],t.shape[1]);return i.dispose(),s.dispose(),u},o.prototype.gatherND=function(t,e){var n=e.shape,r=n[n.length-1],o=jr(t,e),a=o[0],i=o[1],s=o[2],u=o[3],c=e.reshape([i,r]),l=t.reshape([t.size/s,s]),h=new gi(r,u,[i,s]);return this.compileAndRun(h,[l,c]).reshape(a)},o.prototype.fill=function(t,e,n){if("string"===(n=n||j(e))){var r=P(n,k(t));return r.fill(e),Lt.makeTensor(r,t,n,this)}var o=new vi(t,e),a=o.getCustomSetupFunc(e);return this.compileAndRun(o,[],n,a)},o.prototype.onesLike=function(t){if("string"===t.dtype)throw new Error("onesLike is not supported under string dtype");return this.fill(t.shape,1,t.dtype)},o.prototype.zerosLike=function(t){return this.fill(t.shape,"string"===t.dtype?"":0,t.dtype)},o.prototype.linspace=function(t,e,n){return Wo(t,e,n)},o.prototype.makeTensorInfo=function(t,e){var n=this.write(null,t,e);return this.texData.get(n).usage=null,{dataId:n,shape:t,dtype:e}},o.prototype.makeOutput=function(t,e){var n=this.makeTensorInfo(t,e).dataId;return Lt.makeTensorFromDataId(n,t,e,this)},o.prototype.unpackTensor=function(t){var e=new Ys(t.shape);return this.runWebGLProgram(e,[t],t.dtype)},o.prototype.packTensor=function(t){var e=new ji(t.shape);return this.runWebGLProgram(e,[t],t.dtype,null,!0)},o.prototype.packedReshape=function(t,e){var n=[Ae(t.shape)].concat(De(t.shape)),r={dtype:t.dtype,shape:n,dataId:t.dataId},o=[Ae(e)].concat(De(e)),a=new Zi(o,n),i=this.runWebGLProgram(a,[r],t.dtype,null,!0);return{dataId:i.dataId,shape:e,dtype:i.dtype}},o.prototype.decode=function(t){var e,n=this.texData.get(t),r=n.isPacked,o=n.shape,a=n.dtype,i=Te(o);e=r?new ai(i):new oi(i);return{dtype:a,shape:o,dataId:this.runWebGLProgram(e,[{shape:i,dtype:a,dataId:t}],a,null,!0).dataId}},o.prototype.runWebGLProgram=function(t,e,n,r,o){var a=this;void 0===o&&(o=!1);var s=this.makeTensorInfo(t.outputShape,n),u=this.texData.get(s.dataId);if(t.packedOutput&&(u.isPacked=!0),t.outPackingScheme===Vt.DENSE){var c=Yt(t.outputShape);u.texShape=c.map((function(t){return 2*t}))}if(null!=t.outTexUsage&&(u.usage=t.outTexUsage),0===k(s.shape))return u.values=B(s.dtype,0),s;var l=[],h=e.map((function(e){if("complex64"===e.dtype)throw new Error("GPGPUProgram does not support complex64 input. For complex64 dtypes, please separate the program into real and imaginary parts.");var n=a.texData.get(e.dataId);if(null==n.texture){if(!t.packedInputs&&k(e.shape)<=i().getNumber("WEBGL_SIZE_UPLOAD_UNIFORM"))return{shape:e.shape,texData:null,isUniform:!0,uniformValues:n.values};t.packedInputs&&(n.isPacked=!0,n.shape=e.shape)}else if(!!n.isPacked!=!!t.packedInputs)e=n.isPacked?a.unpackTensor(e):a.packTensor(e),l.push(e),n=a.texData.get(e.dataId);else if(n.isPacked&&!_e(n.shape,e.shape)){var r=e,o=e.shape;e.shape=n.shape,e=a.packedReshape(e,o),l.push(e),n=a.texData.get(e.dataId),r.shape=o}return a.uploadToGPU(e.dataId),{shape:e.shape,texData:n,isUniform:!1}}));this.uploadToGPU(s.dataId);var f,d={shape:s.shape,texData:u,isUniform:!1},p=function(t,e,n){var r="";e.concat(n).forEach((function(t){var e=null!=t.texData&&null!=t.texData.slice&&t.texData.slice.flatOffset>0,n=t.isUniform?"uniform":t.texData.texShape;r+=t.shape+"_"+n+"_"+e}));var o=t.userCode,a=t.constructor.name;return a+="_"+r+"_"+o}(t,h,d),v=this.getAndSaveBinary(p,(function(){return function(t,e,n,r){var o=e.userCode,a=n.map((function(t,n){var r={logicalShape:t.shape,texShape:t.isUniform?null:t.texData.texShape,isUniform:t.isUniform,isPacked:!t.isUniform&&t.texData.isPacked,flatOffset:null};return null!=t.texData&&null!=t.texData.slice&&t.texData.slice.flatOffset>0&&(r.flatOffset=t.texData.slice.flatOffset),{name:e.variableNames[n],shapeInfo:r}})),s=a.map((function(t){return t.shapeInfo})),u={logicalShape:r.shape,texShape:r.texData.texShape,isUniform:!1,isPacked:r.texData.isPacked,flatOffset:null},c=fa(a,u,o,e.packedInputs),l=t.createProgram(c),h=null,f=t.getUniformLocation(l,"NAN",!1);1===i().getNumber("WEBGL_VERSION")&&(h=t.getUniformLocation(l,"INFINITY",!1));for(var d={},p=0;p<e.variableNames.length;p++){var v=e.variableNames[p];d[v]=t.getUniformLocation(l,v,!1),d["offset"+v]=t.getUniformLocation(l,"offset"+v,!1)}return{program:e,source:c,webGLProgram:l,uniformLocations:d,inShapeInfos:s,outShapeInfo:u,infLoc:h,nanLoc:f}}(a.gpgpu,t,h,d)})),m=null!=this.activeTimers;if(m&&(f=this.startTimer()),function(t,e,n,r,o){Pi(e.inShapeInfos,n),Pi([e.outShapeInfo],[r]);var a=r.texData.texture,s=r.texData.texShape;r.texData.isPacked?t.setOutputPackedMatrixTexture(a,s[0],s[1]):t.setOutputMatrixTexture(a,s[0],s[1]),t.setProgram(e.webGLProgram),1===i().getNumber("WEBGL_VERSION")&&null!==e.infLoc&&t.gl.uniform1f(e.infLoc,1/0),null!==e.nanLoc&&t.gl.uniform1f(e.nanLoc,NaN),n.forEach((function(n,r){var o=e.program.variableNames[r],a=e.uniformLocations[o],i=e.uniformLocations["offset"+o];if(null!=a)if(n.isUniform)if(k(n.shape)<2)t.gl.uniform1f(a,n.uniformValues[0]);else{var s=n.uniformValues;s instanceof Float32Array||(s=new Float32Array(s)),t.gl.uniform1fv(a,s)}else null!=n.texData.slice&&null!=i&&t.gl.uniform1i(i,n.texData.slice.flatOffset),t.setInputMatrixTexture(n.texData.texture,a,r)})),null!=o&&o(t,e.webGLProgram),t.executeProgram()}(this.gpgpu,v,h,d,r),l.forEach((function(t){return a.disposeData(t.dataId)})),m&&(f=this.endTimer(f),this.activeTimers.push({name:t.constructor.name,query:this.getQueryTime(f)})),!i().getBool("WEBGL_LAZILY_UNPACK")&&u.isPacked&&!1===o){var g=this.unpackTensor(s);return this.disposeData(s.dataId),g}return s},o.prototype.compileAndRun=function(t,e,n,r,o){void 0===o&&(o=!1),n=n||e[0].dtype;var a=this.runWebGLProgram(t,e,n,r,o);return Lt.makeTensorFromDataId(a.dataId,a.shape,a.dtype)},o.prototype.getAndSaveBinary=function(t,e){return t in this.binaryCache||(this.binaryCache[t]=e()),this.binaryCache[t]},o.prototype.getTextureManager=function(){return this.textureManager},o.prototype.dispose=function(){var t=this;if(!this.disposed){if(!i().getBool("IS_TEST"))Object.keys(this.binaryCache).forEach((function(e){t.gpgpu.deleteProgram(t.binaryCache[e].webGLProgram),delete t.binaryCache[e]}));this.textureManager.dispose(),null!=this.canvas&&"undefined"!=typeof HTMLCanvasElement&&this.canvas instanceof HTMLCanvasElement?this.canvas.remove():this.canvas=null,this.gpgpuCreatedLocally&&(this.gpgpu.program=null,this.gpgpu.dispose()),this.disposed=!0}},o.prototype.floatPrecision=function(){var t=this;return null==this.floatPrecisionValue&&(this.floatPrecisionValue=Ze((function(){if(!i().get("WEBGL_RENDER_FLOAT32_ENABLED")){var e=i().getBool("DEBUG");i().set("DEBUG",!1);var n=t.abs(On(1e-8)).dataSync()[0];if(i().set("DEBUG",e),n>0)return 32}return 16}))),this.floatPrecisionValue},o.prototype.epsilon=function(){return 32===this.floatPrecision()?1e-7:1e-4},o.prototype.uploadToGPU=function(t){var e,n=this.texData.get(t),r=n.shape,o=n.dtype,a=n.values,i=n.texture,s=n.usage,u=n.isPacked;if(null==i){var c,l=null!=this.activeTimers;l&&(c=et());var h=n.texShape;if(null==h&&(h=Ne(r,u),n.texShape=h),null!=a){var f=Te(r),d=void 0,p=h[1],v=h[0],m=a instanceof Uint8Array;u?(p=(e=$t(h[0],h[1]))[0],v=e[1],d=new hi(f,[v,p],m)):d=new li(f,[v,p],m);var g=this.makeTensorInfo([v,p],o);this.texData.get(g.dataId).usage=m?zt.PIXELS:zt.UPLOAD,this.gpgpu.uploadDenseMatrixToTexture(this.getTexture(g.dataId),p,v,a);var y=this.runWebGLProgram(d,[g],o,null,!0),x=this.texData.get(y.dataId);n.texture=x.texture,n.texShape=x.texShape,n.isPacked=x.isPacked,n.usage=x.usage,this.disposeData(g.dataId),this.texData.delete(y.dataId),n.values=null,l&&(this.uploadWaitMs+=et()-c)}else{var b=this.acquireTexture(h,s,o,u);n.texture=b}}},o.prototype.convertAndCacheOnCPU=function(t,e){var n=this.texData.get(t),r=n.dtype;return this.releaseGPUData(t),null!=e&&(n.values=function(t,e){if("float32"===e||"complex64"===e)return t;if("int32"===e||"bool"===e){for(var n="int32"===e?new Int32Array(t.length):new Uint8Array(t.length),r=0;r<n.length;++r)n[r]=Math.round(t[r]);return n}throw new Error("Unknown dtype "+e)}(e,r)),n.values},o.prototype.acquireTexture=function(t,e,n,r){if(this.numBytesInGPU+=this.computeBytes(t,n),!this.warnedAboutMemory&&this.numBytesInGPU>1024*this.numMBBeforeWarning*1024){var o=(this.numBytesInGPU/1024/1024).toFixed(2);this.warnedAboutMemory=!0,console.warn("High memory usage in GPU: "+o+" MB, most likely due to a memory leak")}return this.textureManager.acquireTexture(t,e,r)},o.prototype.computeBytes=function(t,e){return t[0]*t[1]*z(e)},o}(bo);Wt()&&Lt.registerBackend("webgl",(function(){return new Zs}),2);var tu=An({square_:function(t){var e=mn(t,"x","square"),n=[e];return Lt.runKernelFunc((function(t,n){return n([e]),t.square(e)}),{x:e},null,"Square",{},n,[])}}),eu="SquaredDifference";var nu=An({squaredDifference_:function(t,e){var n,r=mn(t,"a","squaredDifference"),o=mn(e,"b","squaredDifference");n=Nt(r,o),r=n[0],o=n[1],Ro(r.shape,o.shape);var a={a:r,b:o},i=[r,o];return Lt.runKernelFunc((function(t,e){var n=t.squaredDifference(r,o);return e([r,o]),n}),a,(function(t,e){var n=e[0],r=e[1],o=On(2);return{a:function(){return t.mul(n.sub(r).mul(o))},b:function(){return t.mul(r.sub(n).mul(o))}}}),eu,{},i,[])}});var ru=An({abs_:function(t){var e=mn(t,"x","abs");return"complex64"===e.dtype?Lt.runKernelFunc((function(t){return t.complexAbs(e)}),{$x:e}):Lt.runKernelFunc((function(t,n){var r=t.abs(e);return n([e]),r}),{x:e},(function(t,e){var n=e[0];return{x:function(){return t.mul(n.toFloat().step(-1))}}}),"Abs")}}),ou=An({acos_:function(t){var e=mn(t,"x","acos");return Lt.runKernelFunc((function(t,n){var r=t.acos(e);return n([e]),r}),{$x:e},(function(t,e){var n=e[0];return{$x:function(){return t.divStrict(On(1).sub(n.toFloat().square()).sqrt()).neg()}}}))}}),au=An({acosh_:function(t){var e=mn(t,"x","acosh");return Lt.runKernelFunc((function(t,n){var r=t.acosh(e);return n([e]),r}),{$x:e},(function(t,e){var n=e[0];return{$x:function(){return t.divStrict(n.toFloat().square().sub(1).sqrt())}}}))}}),iu=An({asin_:function(t){var e=mn(t,"x","asin");return Lt.runKernelFunc((function(t,n){var r=t.asin(e);return n([e]),r}),{$x:e},(function(t,e){var n=e[0];return{$x:function(){return t.divStrict(On(1).sub(n.toFloat().square()).sqrt())}}}))}}),su=An({asinh_:function(t){var e=mn(t,"x","asinh");return Lt.runKernelFunc((function(t,n){var r=t.asinh(e);return n([e]),r}),{$x:e},(function(t,e){var n=e[0];return{$x:function(){return t.divStrict(On(1).add(n.toFloat().square()).sqrt())}}}))}}),uu=An({atan_:function(t){var e=mn(t,"x","atan");return Lt.runKernelFunc((function(t,n){var r=t.atan(e);return n([e]),r}),{$x:e},(function(t,e){var n=e[0];return{$x:function(){return t.div(n.toFloat().square().add(1))}}}))}}),cu=An({atanh_:function(t){var e=mn(t,"x","atanh");return Lt.runKernelFunc((function(t,n){var r=t.atanh(e);return n([e]),r}),{$x:e},(function(t,e){var n=e[0];return{$x:function(){return t.div(On(1).sub(n.toFloat().square()))}}}))}}),lu=An({ceil_:function(t){var e=mn(t,"x","ceil");return Lt.runKernelFunc((function(t){return t.ceil(e)}),{$x:e},(function(t){return{$x:function(){return Xn(t)}}}))}}),hu=An({clipByValue_:function(t,e,n){var r=mn(t,"x","clipByValue");C(e<=n,(function(){return"Error in clip: min ("+e+") must be less than or equal to max ("+n+")."}));var o=[r],a={min:e,max:n};return Lt.runKernelFunc((function(t,o){var a=t.clip(r,e,n);return o([r]),a}),{x:r},(function(t,r){var o=r[0];return{x:function(){return t.where(o.greaterEqual(e).logicalAnd(o.lessEqual(n)),Xn(t))}}}),"ClipByValue",a,o)}}),fu=An({cos_:function(t){var e=mn(t,"x","cos"),n=[e];return Lt.runKernelFunc((function(t,n){var r=t.cos(e);return n([e]),r}),{x:e},(function(t,e){var n=e[0];return{x:function(){return n.toFloat().sin().neg().mul(t)}}}),"Cos",{},n)}}),du=An({cosh_:function(t){var e=mn(t,"x","cosh");return Lt.runKernelFunc((function(t,n){var r=t.cosh(e);return n([e]),r}),{$x:e},(function(t,e){var n=e[0];return{$x:function(){return n.toFloat().sinh().mulStrict(t)}}}))}}),pu=An({erf_:function(t){var e=mn(t,"x","erf");return C("int32"===e.dtype||"float32"===e.dtype,(function(){return"Input dtype must be `int32` or `float32`."})),"int32"===e.dtype&&(e=e.toFloat()),Lt.runKernelFunc((function(t,n){var r=t.erf(e);return n([e]),r}),{$x:e},(function(t,e){var n=e[0];return{$x:function(){return t.mul(n.square().neg().exp().mul(2/Math.sqrt(Math.PI)))}}}))}}),vu=An({exp_:function(t){var e=mn(t,"x","exp");return Lt.runKernelFunc((function(t,n){var r=t.exp(e);return n([r]),r}),{x:e},(function(t,e){return{x:function(){return t.mulStrict(e[0])}}}),"Exp",{},[],[!0])}}),mu=An({expm1_:function(t){var e=mn(t,"x","expm1");return Lt.runKernelFunc((function(t,n){var r=t.expm1(e);return n([e]),r}),{$x:e},(function(t,e){var n=e[0];return{$x:function(){return t.mul(n.exp())}}}))}}),gu=An({floor_:function(t){var e=mn(t,"x","floor");return Lt.runKernelFunc((function(t){return t.floor(e)}),{$x:e},(function(t){return{$x:function(){return Xn(t)}}}))}}),yu=An({log_:function(t){var e=mn(t,"x","log"),n=[e];return Lt.runKernelFunc((function(t,n){var r=t.log(e);return n([e]),r}),{x:e},(function(t,e){var n=e[0];return{x:function(){return t.div(n.toFloat())}}}),"Log",{},n)}}),xu=An({log1p_:function(t){var e=mn(t,"x","log1p");return Lt.runKernelFunc((function(t,n){var r=t.log1p(e);return n([e]),r}),{$x:e},(function(t,e){var n=e[0];return{$x:function(){return t.div(n.add(1))}}}))}}),bu=An({logSigmoid_:function(t){var e=mn(t,"x","logSigmoid");return Lt.runKernelFunc((function(t,n){var r=t.softplus(e.neg()).neg();return n([e]),r}),{$x:e},(function(t,e){var n=e[0];return{$x:function(){return t.mul(n.neg().sigmoid())}}}))}}),wu=An({neg_:function(t){var e=mn(t,"x","neg"),n=[e];return Lt.runKernelFunc((function(t){return t.neg(e)}),{x:e},(function(t){return{x:function(){return t.neg()}}}),"Neg",{},n)}}),Cu=An({reciprocal_:function(t){var e=mn(t,"x","reciprocal");return Lt.runKernelFunc((function(t,n){var r=t.reciprocal(e);return n([e]),r}),{$x:e},(function(t,e){var n=e[0];return{$x:function(){return t.div(n.square().neg())}}}))}}),Eu=An({round_:function(t){var e=mn(t,"x","round");return Lt.runKernelFunc((function(t){return t.round(e)}),{$x:e},(function(t){return{$x:function(){return Xn(t)}}}))}}),Ru=An({rsqrt_:function(t){var e=mn(t,"x","rsqrt"),n=[e];return Lt.runKernelFunc((function(t,n){var r=t.rsqrt(e);return n([e]),r}),{x:e},(function(t,e){var n=e[0];return{x:function(){return t.div(n.pow(1.5).mul(2)).neg()}}}),"Rsqrt",{},n)}}),Iu=An({sigmoid_:function(t){var e=mn(t,"x","sigmoid");return Lt.runKernelFunc((function(t,n){var r=t.sigmoid(e);return n([r]),r}),{x:e},(function(t,e){var n=e[0];return{x:function(){return t.mul(n.mul(On(1).sub(n)))}}}),"Sigmoid")}}),ku=An({sign_:function(t){var e=mn(t,"x","sign");return Lt.runKernelFunc((function(t){return t.sign(e)}),{$x:e},(function(t){return{$x:function(){return Xn(t)}}}))}}),Su=An({isNaN_:function(t){var e=mn(t,"x","isNaN");return Lt.runKernelFunc((function(t){return t.isNaN(e)}),{$x:e},(function(t){return{$x:function(){return Xn(t)}}}))}}),Au=An({isInf_:function(t){var e=mn(t,"x","isInf");return Lt.runKernelFunc((function(t){return t.isInf(e)}),{$x:e},(function(t){return{$x:function(){return Xn(t)}}}))}}),Du=An({isFinite_:function(t){var e=mn(t,"x","isFinite");return Lt.runKernelFunc((function(t){return t.isFinite(e)}),{$x:e},(function(t){return{$x:function(){return Xn(t)}}}))}}),Tu=An({sin_:function(t){var e=mn(t,"x","sin"),n=[e];return Lt.runKernelFunc((function(t,n){var r=t.sin(e);return n([e]),r}),{x:e},(function(t,e){var n=e[0];return{x:function(){return n.toFloat().cos().mul(t)}}}),"Sin",{},n)}}),Nu=An({sinh_:function(t){var e=mn(t,"x","sinh");return Lt.runKernelFunc((function(t,n){var r=t.sinh(e);return n([e]),r}),{$x:e},(function(t,e){var n=e[0];return{$x:function(){return n.toFloat().cosh().mulStrict(t)}}}))}}),Fu=An({softplus_:function(t){var e=mn(t,"x","softplus");return Lt.runKernelFunc((function(t,n){var r=t.softplus(e);return n([e]),r}),{$x:e},(function(t,e){var n=e[0];return{$x:function(){return t.mul(n.sigmoid())}}}))}}),_u=An({sqrt_:function(t){var e=mn(t,"x","sqrt");return Lt.runKernelFunc((function(t,n){var r=t.sqrt(e);return n([e]),r}),{$x:e},(function(t,e){var n=e[0];return{$x:function(){return t.div(n.toFloat().sqrt().mul(2))}}}))}}),Ou=An({step_:function(t,e){void 0===e&&(e=0);var n=mn(t,"x","step");return Lt.runKernelFunc((function(t){return t.step(n,e)}),{$x:n},(function(t){return{$x:function(){return Xn(t)}}}))}}),Mu=An({tan_:function(t){var e=mn(t,"x","tan");return Lt.runKernelFunc((function(t,n){var r=t.tan(e);return n([e]),r}),{$x:e},(function(t,e){var n=e[0];return{$x:function(){return t.div(n.cos().square())}}}))}}),Bu=An({tanh_:function(t){var e=mn(t,"x","tanh");return Lt.runKernelFunc((function(t,n){var r=t.tanh(e);return n([r]),r}),{x:e},(function(t,e){var n=e[0];return{x:function(){return On(1).sub(n.square()).mulStrict(t)}}}),"Tanh",{},null,[!0])}});function Pu(t,e,n,r,o,a){var i,s,u=mn(t,"x","batchNorm"),c=mn(e,"mean","batchNorm"),l=mn(n,"variance","batchNorm");return null!=o&&(i=mn(o,"scale","batchNorm")),null!=r&&(s=mn(r,"offset","batchNorm")),C(2===u.rank,(function(){return"Error in batchNorm3D: x must be rank 3 but got rank "+u.rank+"."})),C(2===c.rank||1===c.rank,(function(){return"Error in batchNorm2D: mean must be rank 2 or rank 1 but got rank "+c.rank+"."})),C(2===l.rank||1===l.rank,(function(){return"Error in batchNorm2D: variance must be rank 2 or rank 1 but got rank "+l.rank+"."})),null!=i&&C(2===i.rank||1===i.rank,(function(){return"Error in batchNorm2D: scale must be rank 2 or rank 1 but got rank "+i.rank+"."})),null!=s&&C(2===s.rank||1===s.rank,(function(){return"Error in batchNorm2D: offset must be rank 2 or rank 1 but got rank "+s.rank+"."})),Uu(u,c,l,s,i,a)}function Lu(t,e,n,r,o,a){var i,s,u=mn(t,"x","batchNorm"),c=mn(e,"mean","batchNorm"),l=mn(n,"variance","batchNorm");return null!=o&&(i=mn(o,"scale","batchNorm")),null!=r&&(s=mn(r,"offset","batchNorm")),C(3===u.rank,(function(){return"Error in batchNorm3D: x must be rank 3 but got rank "+u.rank+"."})),C(3===c.rank||1===c.rank,(function(){return"Error in batchNorm3D: mean must be rank 3 or rank 1 but got rank "+c.rank+"."})),C(3===l.rank||1===l.rank,(function(){return"Error in batchNorm3D: variance must be rank 3 or rank 1 but got rank "+l.rank+"."})),null!=i&&C(3===i.rank||1===i.rank,(function(){return"Error in batchNorm3D: scale must be rank 3 or rank 1 but got rank "+i.rank+"."})),null!=s&&C(3===s.rank||1===s.rank,(function(){return"Error in batchNorm3D: offset must be rank 3 or rank 1 but got rank "+s.rank+"."})),Uu(u,c,l,s,i,a)}function Wu(t,e,n,r,o,a){var i,s,u=mn(t,"x","batchNorm"),c=mn(e,"mean","batchNorm"),l=mn(n,"variance","batchNorm");return null!=o&&(i=mn(o,"scale","batchNorm")),null!=r&&(s=mn(r,"offset","batchNorm")),C(4===u.rank,(function(){return"Error in batchNorm4D: x must be rank 4 but got rank "+u.rank+"."})),C(4===c.rank||1===c.rank,(function(){return"Error in batchNorm4D: mean must be rank 4 or rank 1 but got rank "+c.rank+"."})),C(4===l.rank||1===l.rank,(function(){return"Error in batchNorm4D: variance must be rank 4 or rank 1 but got rank "+l.rank+"."})),null!=i&&C(4===i.rank||1===i.rank,(function(){return"Error in batchNorm4D: scale must be rank 4 or rank 1 but got rank "+i.rank+"."})),null!=s&&C(4===s.rank||1===s.rank,(function(){return"Error in batchNorm4D: offset must be rank 4 or rank 1 but got rank "+s.rank+"."})),Uu(u,c,l,s,i,a)}function Uu(t,e,n,r,o,a){null==a&&(a=.001);var i,s,u,c=mn(t,"x","batchNorm"),l=mn(e,"mean","batchNorm"),h=mn(n,"variance","batchNorm");null!=o&&(i=mn(o,"scale","batchNorm")),null!=r&&(s=mn(r,"offset","batchNorm")),C(l.rank===h.rank,(function(){return"Batch normalization gradient requires mean and variance to have equal ranks."})),C(null==s||l.rank===s.rank,(function(){return"Batch normalization gradient requires mean and offset to have equal ranks."})),C(null==i||l.rank===i.rank,(function(){return"Batch normalization gradient requires mean and scale to have equal ranks."})),u=0===c.rank||1===c.rank?c.as4D(1,1,1,c.size):2===c.rank?c.as4D(1,1,c.shape[0],c.shape[1]):3===c.rank?c.as4D(1,c.shape[0],c.shape[1],c.shape[2]):c;var f=[c,l,h,i];return Lt.runKernelFunc((function(t,e){var n=t.batchNormalization(u,Vu(l),Vu(h),a,Vu(i),Vu(s));return e([c,l,h,i]),n}),{x:c,mean:l,variance:h,scale:i,offset:s},(function(t,e){var n=e,r=n[0],o=n[1],i=n[2],s=n[3],c=null==s?On(1):s,l=Eo(o.shape,u.shape),h=[];if(1===o.rank){for(var f=0;f<u.shape.length-1;++f)h.push(u.shape[f]);h.push(1)}var d=r.sub(o),p=t.mul(c),v=Ru(i.add(On(a))),m=v.mul(v).mul(v).mul(On(-.5));return{x:function(){return 1===o.rank?t.mul(Lr(v.as4D(1,1,1,o.shape[0]),h)).mul(c).reshape(r.shape):t.mul(v).mul(c).reshape(r.shape)},mean:function(){var t=v.mul(On(-1)).mul(p);return 1===o.rank&&(t=t.sum(l)),t.reshape(o.shape)},variance:function(){var t=m.mul(d).mul(p);return 1===o.rank&&(t=t.sum(l)),t.reshape(o.shape)},scale:function(){var e=d.mul(v),n=t.mul(e);return 1===o.rank&&(n=n.sum(l)),n.reshape(o.shape)},offset:function(){var e=t;return 1===o.rank&&(e=e.sum(l)),e.reshape(o.shape)}}}),"BatchNormalization",{varianceEpsilon:a},f).reshape(c.shape)}function Vu(t){return null==t?null:0===t.rank?t.as1D():1===t.rank?t:2===t.rank?t.as4D(1,1,t.shape[0],t.shape[1]):3===t.rank?t.as4D(1,t.shape[0],t.shape[1],t.shape[2]):t}function zu(){Xe("tf.batchNormalization() is going away. Use tf.batchNorm() instead, and note the positional argument change of scale, offset, and varianceEpsilon")}var Gu=An({batchNormalization2d_:function(t,e,n,r,o,a){return void 0===r&&(r=.001),zu(),Pu(t,e,n,a,o,r)}}),Hu=An({batchNormalization3d_:function(t,e,n,r,o,a){return void 0===r&&(r=.001),zu(),Lu(t,e,n,a,o,r)}}),qu=An({batchNormalization4d_:function(t,e,n,r,o,a){return void 0===r&&(r=.001),zu(),Wu(t,e,n,a,o,r)}}),Ku=An({batchNormalization_:function(t,e,n,r,o,a){return void 0===r&&(r=.001),zu(),Uu(t,e,n,a,o,r)}}),ju=An({batchNorm_:Uu}),Xu=An({batchNorm2d_:Pu}),Yu=An({batchNorm3d_:Lu}),$u=An({batchNorm4d_:Wu});var Qu=An({logicalAnd_:function(t,e){var n=mn(t,"a","logicalAnd","bool"),r=mn(e,"b","logicalAnd","bool");return Ro(n.shape,r.shape),Lt.runKernelFunc((function(t){return t.logicalAnd(n,r)}),{a:n,b:r},null,"LogicalAnd")}}),Ju=An({logicalNot_:function(t){var e=mn(t,"x","logicalNot","bool");return Lt.runKernelFunc((function(t){return t.logicalNot(e)}),{$x:e})}}),Zu=An({logicalOr_:function(t,e){var n=mn(t,"a","logicalOr","bool"),r=mn(e,"b","logicalOr","bool");return Ro(n.shape,r.shape),Lt.runKernelFunc((function(t){return t.logicalOr(n,r)}),{$a:n,$b:r})}}),tc=An({logicalXor_:function(t,e){var n=mn(t,"a","logicalXor","bool"),r=mn(e,"b","logicalXor","bool");return Ro(n.shape,r.shape),Zu(t,e).logicalAnd(Qu(t,e).logicalNot())}}),ec=An({where_:function(t,e,n){var r=mn(e,"a","where"),o=mn(n,"b","where"),a=mn(t,"condition","where","bool");return E(r.shape,o.shape,"Error in where: "),1===a.rank?C(a.shape[0]===r.shape[0],(function(){return"The first dimension of `a` must match the size of `condition`."})):E(a.shape,o.shape,"Error in where: "),Lt.runKernelFunc((function(t,e){var n=t.select(a,r,o);return e([a]),n}),{$condition:a,$a:r,$b:o},(function(t,e){var n=e[0];return{$condition:function(){return Xn(n).toFloat()},$a:function(){return t.mul(n.cast(t.dtype))},$b:function(){return t.mul(n.logicalNot().cast(t.dtype))}}}))}}),nc=function(t){return n(this,void 0,void 0,(function(){var e,n,o;return r(this,(function(r){switch(r.label){case 0:return[4,(e=mn(t,"condition","whereAsync","bool")).data()];case 1:return n=r.sent(),o=na(e.shape,n),t!==e&&e.dispose(),[2,o]}}))}))};var rc=An({add_:function(t,e){var n,r=mn(t,"a","add"),o=mn(e,"b","add");n=Nt(r,o),r=n[0],o=n[1];var a=Ro(r.shape,o.shape);return Lt.runKernelFunc((function(t){return t.add(r,o)}),{a:r,b:o},(function(t){return{a:function(){var e=t,n=Eo(r.shape,a);return n.length>0&&(e=e.sum(n)),e.reshape(r.shape)},b:function(){var e=t,n=Eo(o.shape,a);return n.length>0&&(e=e.sum(n)),e.reshape(o.shape)}}}),"Add")}}),oc=An({addN_:function(t){C(Array.isArray(t),(function(){return"The argument passed to tf.addN() must be a list of tensors"})),C(t.length>=1,(function(){return"Must pass at least one tensor to tf.addN(), but got "+t.length}));var e=t.map((function(t,e){return mn(t,"tensors"+e,"addN")})),n=e[0];e.forEach((function(t){if(t.dtype!==n.dtype)throw new Error("All tensors passed to tf.addN() must have the same dtype")})),e.forEach((function(t){if(!S(t.shape,n.shape))throw new Error("All tensors passed to tf.addN() must have the same shape")}));var r=e;return Lt.runKernelFunc((function(t){return t.addN(e)}),r,(function(t){var n={};return e.forEach((function(e,r){n[r]=function(){return t.clone()}})),n}),"AddN")}}),ac=An({addStrict_:function(t,e){var n=mn(t,"a","addStrict"),r=mn(e,"b","addStrict");return E(n.shape,r.shape,"Error in addStrict: "),n.add(r)}}),ic=An({atan2_:function(t,e){var n,r=mn(t,"a","atan2"),o=mn(e,"b","atan2");n=Nt(r,o),r=n[0],o=n[1];var a=Ro(r.shape,o.shape);return Lt.runKernelFunc((function(t,e){var n=t.atan2(r,o);return e([r,o]),n}),{$a:r,$b:o},(function(t,e){var n=e[0],r=e[1];return{$a:function(){var e=rc(n.square(),r.square()),o=t.mul(r.div(e)),i=Eo(n.shape,a);return i.length>0&&(o=o.sum(i)),o.reshape(n.shape)},$b:function(){var e=rc(n.square(),r.square()),o=wu(t.mul(n.div(e))),i=Eo(r.shape,a);return i.length>0&&(o=o.sum(i)),o.reshape(r.shape)}}}))}}),sc=An({div_:function(t,e){var n,r=mn(t,"a","div"),o=mn(e,"b","div");if(n=Nt(r,o),r=n[0],o=n[1],"int32"===r.dtype&&"int32"===o.dtype)return lc(r,o);var a=Ro(r.shape,o.shape);return Lt.runKernelFunc((function(t,e){var n=t.realDivide(r,o);return e([r,o]),n}),{a:r,b:o},(function(t,e){var n=e[0],r=e[1];return{a:function(){var e=t.div(r.toFloat()),o=Eo(n.shape,a);return o.length>0?e.sum(o).reshape(n.shape):e},b:function(){var e=t.mul(n.toFloat()),o=Eo(r.shape,a);o.length>0&&(e=e.sum(o).reshape(r.shape));var i=r.square();return e.div(i.toFloat()).neg()}}}),"Div")}}),uc=An({divNoNan_:function(t,e){var n,r=mn(t,"a","div"),o=mn(e,"b","div");r=(n=Nt(r,o))[0],o=n[1];var a=sc(r,o),i=Xn(a),s=o.equal(i);return ec(s,i,a)}}),cc=An({divStrict_:function(t,e){var n=mn(t,"a","div"),r=mn(e,"b","div");return E(n.shape,r.shape,"Error in divideStrict: "),n.div(r)}}),lc=An({floorDiv_:function(t,e){var n,r=mn(t,"a","floorDiv"),o=mn(e,"b","floorDiv");n=Nt(r,o),r=n[0],o=n[1];var a=Ro(r.shape,o.shape);return Lt.runKernelFunc((function(t,e){var n=t.floorDiv(r,o);return e([r,o]),n}),{a:r,b:o},(function(t,e){var n=e[0],r=e[1];return{a:function(){var e=t.div(r.toFloat()),o=Eo(n.shape,a);return o.length>0?e.sum(o).reshape(n.shape):e},b:function(){var e=t.mul(n.toFloat()),o=Eo(r.shape,a);o.length>0&&(e=e.sum(o).reshape(r.shape));var i=r.square();return e.div(i.toFloat()).neg()}}}),"FloorDiv")}}),hc=An({maximum_:function(t,e){var n,r=mn(t,"a","maximum"),o=mn(e,"b","maximum");return n=Nt(r,o),r=n[0],o=n[1],"bool"===r.dtype&&(r=r.toInt(),o=o.toInt()),Ro(r.shape,o.shape),Lt.runKernelFunc((function(t,e){var n=t.maximum(r,o);return e([r,o]),n}),{a:r,b:o},(function(t,e){var n=e[0],r=e[1];return{a:function(){return t.mul(n.greaterEqual(r).toFloat())},b:function(){return t.mul(n.less(r).toFloat())}}}),"Maximum")}}),fc=An({maximumStrict_:function(t,e){var n=mn(t,"a","maximumStrict"),r=mn(e,"b","maximumStrict");return E(n.shape,r.shape,"Error in maximumStrict: "),n.maximum(r)}}),dc=An({minimum_:function(t,e){var n,r=mn(t,"a","minimum"),o=mn(e,"b","minimum");return n=Nt(r,o),r=n[0],o=n[1],"bool"===r.dtype&&(r=r.toInt(),o=o.toInt()),Ro(r.shape,o.shape),Lt.runKernelFunc((function(t,e){var n=t.minimum(r,o);return e([r,o]),n}),{a:r,b:o},(function(t,e){var n=e[0],r=e[1];return{a:function(){return t.mul(n.lessEqual(r).toFloat())},b:function(){return t.mul(n.greater(r).toFloat())}}}),"Minimum")}}),pc=An({minimumStrict_:function(t,e){var n=mn(t,"a","minimumStrict"),r=mn(e,"b","minimumStrict");return E(n.shape,r.shape,"Error in minimumStrict: "),n.minimum(r)}}),vc=An({mod_:function(t,e){var n,r=mn(t,"a","mod"),o=mn(e,"b","mod");n=Nt(r,o),r=n[0],o=n[1];var a=Ro(r.shape,o.shape);return Lt.runKernelFunc((function(t,e){var n=t.mod(r,o);return e([r,o]),n}),{$a:r,$b:o},(function(t,e){var n=e[0],r=e[1];return{$a:function(){var e=Eo(n.shape,a);return e.length>0?t.sum(e).reshape(n.shape):t},$b:function(){var e=t.mul(n.div(r).floor().neg()),o=Eo(r.shape,a);return o.length>0?e.sum(o).reshape(r.shape):e}}}))}}),mc=An({modStrict_:function(t,e){var n=mn(t,"a","modStrict"),r=mn(e,"b","modStrict");return E(n.shape,r.shape,"Error in modStrict: "),n.mod(r)}}),gc=An({mul_:function(t,e){var n,r=mn(t,"a","mul"),o=mn(e,"b","mul");n=Nt(r,o),r=n[0],o=n[1];var a=Ro(r.shape,o.shape);return Lt.runKernelFunc((function(t,e){var n=t.multiply(r,o);return e([r,o]),n}),{a:r,b:o},(function(t,e){var n=e[0],r=e[1];return{a:function(){var e=t.mul(r.toFloat()),o=Eo(n.shape,a);return o.length>0?e.sum(o).reshape(n.shape):e},b:function(){var e=t.mul(n.toFloat()),o=Eo(r.shape,a);return o.length>0?e.sum(o).reshape(r.shape):e}}}),"Mul")}}),yc=An({mulStrict_:function(t,e){var n=mn(t,"a","mul"),r=mn(e,"b","mul");return E(n.shape,r.shape,"Error in multiplyStrict: "),n.mul(r)}}),xc=An({pow_:function(t,e){var n,r=mn(t,"base","pow"),o=mn(e,"exp","pow");n=Nt(r,o),r=n[0],o=n[1];var a=Ro(r.shape,o.shape),i=[r,o];return Lt.runKernelFunc((function(t,e){var n=t.pow(r,o);return e([r,o,n]),n}),{a:r,b:o},(function(t,e){var n=e[0],r=e[1],o=e[2];return{a:function(){var e=r.toFloat(),o=t.mul(e.mul(n.pow(e.sub(On(1))))),i=Eo(n.shape,a);return i.length>0&&(o=o.sum(i)),o.reshape(n.shape)},b:function(){var e=n.greater(0),i=n.log().where(e,Xn(n)),s=t.mul(o.mul(i)),u=Eo(r.shape,a);return u.length>0&&(s=s.sum(u)),s.reshape(r.shape)}}}),"Pow",{},i,[!0])}}),bc=An({powStrict_:function(t,e){return E(t.shape,e.shape,"Error in powStrict: "),t.pow(e)}}),wc=An({squaredDifferenceStrict_:function(t,e){var n=mn(t,"a","squaredDifferenceStrict"),r=mn(e,"b","squaredDifferenceStrict");return E(n.shape,r.shape,"Error in squaredDifferenceStrict: "),n.squaredDifference(r)}}),Cc=An({sub_:function(t,e){var n,r=mn(t,"a","sub"),o=mn(e,"b","sub");n=Nt(r,o),r=n[0],o=n[1];var a=Ro(r.shape,o.shape);return Lt.runKernelFunc((function(t){return t.subtract(r,o)}),{a:r,b:o},(function(t){return{a:function(){var e=t,n=Eo(r.shape,a);return n.length>0&&(e=e.sum(n)),e.reshape(r.shape)},b:function(){var e=t,n=Eo(o.shape,a);return n.length>0&&(e=e.sum(n)),e.neg().reshape(o.shape)}}}),"Sub")}}),Ec=An({subStrict_:function(t,e){var n=mn(t,"a","subStrict"),r=mn(e,"b","subStrict");return E(n.shape,r.shape,"Error in subStrict: "),n.sub(r)}});var Rc=An({equal_:function(t,e){var n,r=mn(t,"a","equal"),o=mn(e,"b","equal");return n=Nt(r,o),r=n[0],o=n[1],Ro(r.shape,o.shape),Lt.runKernelFunc((function(t){return t.equal(r,o)}),{$a:r,$b:o})}}),Ic=An({equalStrict_:function(t,e){var n=mn(t,"a","equalStrict"),r=mn(e,"b","equalStrict");return E(n.shape,r.shape,"Error in equalStrict: "),n.equal(r)}}),kc=An({greater_:function(t,e){var n,r=mn(t,"a","greater"),o=mn(e,"b","greater");return n=Nt(r,o),r=n[0],o=n[1],Ro(r.shape,o.shape),Lt.runKernelFunc((function(t){return t.greater(r,o)}),{a:r,b:o},null,"Greater")}}),Sc=An({greaterEqual_:function(t,e){var n,r=mn(t,"a","greaterEqual"),o=mn(e,"b","greaterEqual");return n=Nt(r,o),r=n[0],o=n[1],Ro(r.shape,o.shape),Lt.runKernelFunc((function(t,e){var n=t.greaterEqual(r,o);return e([r,o]),n}),{a:r,b:o},(function(t,e){var n=e[0],r=e[1];return{a:function(){return Xn(n)},b:function(){return Xn(r)}}}),"GreaterEqual")}}),Ac=An({greaterEqualStrict_:function(t,e){var n=mn(t,"a","greaterEqualStrict"),r=mn(e,"b","greaterEqualStrict");return E(n.shape,r.shape,"Error in greaterEqualStrict: "),n.greaterEqual(r)}}),Dc=An({greaterStrict_:function(t,e){var n=mn(t,"a","greaterStrict"),r=mn(e,"b","greaterStrict");return E(n.shape,r.shape,"Error in greaterStrict: "),n.greater(r)}}),Tc=An({less_:function(t,e){var n,r=mn(t,"a","less"),o=mn(e,"b","less");return n=Nt(r,o),r=n[0],o=n[1],Ro(r.shape,o.shape),Lt.runKernelFunc((function(t){return t.less(r,o)}),{a:r,b:o},null,"Less")}}),Nc=An({lessEqual_:function(t,e){var n,r=mn(t,"a","lessEqual"),o=mn(e,"b","lessEqual");return n=Nt(r,o),r=n[0],o=n[1],Ro(r.shape,o.shape),Lt.runKernelFunc((function(t,e){var n=t.lessEqual(r,o);return e([r,o]),n}),{a:r,b:o},null,"LessEqual")}}),Fc=An({lessEqualStrict_:function(t,e){var n=mn(t,"a","lessEqualStrict"),r=mn(e,"b","lessEqualStrict");return E(n.shape,r.shape,"Error in lessEqualStrict: "),n.lessEqual(r)}}),_c=An({lessStrict_:function(t,e){var n=mn(t,"a","lessStrict"),r=mn(e,"b","lessStrict");return E(n.shape,r.shape,"Error in lessStrict: "),n.less(r)}}),Oc=An({notEqual_:function(t,e){var n,r=mn(t,"a","notEqual"),o=mn(e,"b","notEqual");return n=Nt(r,o),r=n[0],o=n[1],Ro(r.shape,o.shape),Lt.runKernelFunc((function(t){return t.notEqual(r,o)}),{a:r,b:o},null,"NotEqual")}}),Mc=An({notEqualStrict_:function(t,e){var n=mn(t,"a","notEqualStrict"),r=mn(e,"b","notEqualStrict");return E(n.shape,r.shape,"Error in notEqualStrict: "),n.notEqual(r)}});function Bc(t,e){for(var n=[],r=t;r<e;++r)n.push(r);return n}function Pc(t){for(var e=[],n=0;n<t.length;++n)for(var r=0;r<t[n].length;++r)e.push(t[n][r]);return e}var Lc=An({gather_:function(t,e,n){void 0===n&&(n=0);var r=mn(t,"x","gather"),o=mn(e,"indices","gather","int32");n=O(n,r.shape)[0];var a=function(t,e,n){for(var r=t.shape[n],o=[],a=1,i=1,s=0;s<n;s++)o.push(t.shape[s]),a*=t.shape[s];for(s=0;s<e.rank;s++)o.push(e.shape[s]);for(s=n+1;s<t.rank;s++)o.push(t.shape[s]),i*=t.shape[s];return{batchSize:a,sliceSize:i,dimSize:r,outputShape:o}}(r,o,n);return Lt.runKernelFunc((function(t,e){var a=t.gather(r,o.flatten(),n);return e([o]),a}),{x:r,indices:o},(function(t,e){var o=e[0];return{x:function(){var e=r.shape,a=o.size,i=e.slice(0,n),s=i.length,u=e.slice(n,e.length).slice(1),c=u.length,l=Bc(0,s),h=Bc(s+1,s+1+c),f=Pc([i,[a],u]),d=t.reshape(f),p=o.reshape([a]),v=Pc([[s],l,h]),m=d.transpose(v),g=Wc(m,p,r.shape[n]),y=Rn(v);return g=g.transpose(y)},indices:function(){return o}}}),"Gather",{axis:n}).reshape(a.outputShape)}}),Wc=An({unsortedSegmentSum_:function(t,e,n){var r=mn(t,"x","unsortedSegmentSum"),o=mn(e,"segmentIds","unsortedSegmentSum","int32");return C(A(n),(function(){return"numSegments must be of dtype int"})),Lt.runKernelFunc((function(t,e){var a=t.unsortedSegmentSum(r,o,n);return e([o]),a}),{$x:r},(function(t,e){var n=e[0];return{$x:function(){return function(t,e){for(var n=hc(e,Xn(e)),r=Lc(t,n),o=Sc(e,On(0,"int32")),a=r.rank-o.rank,i=0;i<a;++i)o=wr(o,i+1);o=Qu(o,zn(r.shape,"bool"));var s=Xn(r);return ec(o,r,s)}(t,n)}}}))}});var Uc=function(t,e,o){return n(this,void 0,void 0,(function(){var n,a,i,s,u,c,l,h,f,d,p,v,m;return r(this,(function(r){switch(r.label){case 0:for(n=mn(t,"tensor","boolMask"),a=mn(e,"mask","boolMask","bool"),i=null==o?0:o,s=a.rank,u=n.shape,C(s>0,(function(){return"mask cannot be scalar"})),E(u.slice(i,i+s),a.shape,"mask's shape must match the first K dimensions of tensor's shape,"),c=1,l=i;l<i+s;l++)c*=u[l];return h=u.slice(0,i).concat([c],u.slice(i+s)),f=n.reshape(h),d=a.reshape([-1]),[4,nc(d)];case 1:return p=r.sent(),v=p.squeeze([1]),m=Lc(f,v,i),t!==n&&n.dispose(),e!==a&&a.dispose(),v.dispose(),f.dispose(),d.dispose(),p.dispose(),[2,m]}}))}))};function Vc(t,e,n,r,o,a,i){void 0===a&&(a="NHWC"),C(t.length===e.rank,(function(){return"Length of inShape ("+t.length+") and rank of dy ("+e.rank+") must match"}));var s=t,u=e,c=!1;3===e.rank&&(c=!0,u=e.as4D(1,e.shape[0],e.shape[1],e.shape[2]),s=[1,t[0],t[1],t[2]]),C(4===s.length,(function(){return"Error in conv2dDerInput: inShape must be length 4, but got length "+s.length+"."})),C(4===u.rank,(function(){return"Error in conv2dDerInput: dy must be rank 4, but got rank "+u.rank})),C(4===n.rank,(function(){return"Error in conv2dDerInput: filter must be rank 4, but got rank "+n.rank}));var l="NHWC"===a?s[3]:s[1],h="NHWC"===a?u.shape[3]:u.shape[1];C(l===n.shape[2],(function(){return"Error in conv2dDerInput: depth of input ("+l+") must match input depth for filter "+n.shape[2]+"."})),C(h===n.shape[3],(function(){return"Error in conv2dDerInput: depth of output ("+h+") must match output depth for filter "+n.shape[3]+"."})),null!=i&&C(A(o),(function(){return"Error in conv2dDerInput: pad must be an integer when using, dimRoundingMode "+i+" but got pad "+o+"."}));var f=Bo(a),d=So(s,n.shape,r,1,o,i,!1,f),p=Lt.runKernelFunc((function(t,e){var r=t.conv2dDerInput(u,n,d);return e([n,u]),r}),{dy4D:u,filter:n},(function(t,e){var n=e[0],s=e[1];return{dy4D:function(){return qc(t,n,r,o,a,1,i)},filter:function(){return jc(t,s,n.shape,r,o,a,i)}}}));return c?p.as3D(p.shape[1],p.shape[2],p.shape[3]):p}function zc(t){var e=function(t){return"number"==typeof t?[t,t,t]:2===t.length?[t[0],t[1],1]:t}(t),n=e[0],r=e[1],o=e[2];return 1===n&&1===r&&1===o}function Gc(t,e,n,r,o){C(t.length===e.rank,(function(){return"Length of inShape ("+t.length+") and rank of dy ("+e.rank+") must match"}));var a=t,i=e,s=!1;4===e.rank&&(s=!0,i=e.as5D(1,e.shape[0],e.shape[1],e.shape[2],e.shape[3]),a=[1,t[0],t[1],t[2],t[3]]);var u=a[4],c=i.shape[4];C(5===a.length,(function(){return"Error in conv3dDerInput: inShape must be length 5, but got length "+a.length+"."})),C(5===i.rank,(function(){return"Error in conv3dDerInput: dy must be rank 5, but got rank "+i.rank})),C(5===n.rank,(function(){return"Error in conv3dDerInput: filter must be rank 5, but got rank "+n.rank})),C(u===n.shape[3],(function(){return"Error in conv3dDerInput: depth of input ("+u+") must match input depth for filter "+n.shape[3]+"."})),C(c===n.shape[4],(function(){return"Error in conv3dDerInput: depth of output ("+c+") must match output depth for filter "+n.shape[4]+"."}));var l=Ao(a,n.shape,r,1,o),h=Lt.runKernelFunc((function(t){return t.conv3dDerInput(i,n,l)}),{dy5D:i});return s?h.as4D(h.shape[1],h.shape[2],h.shape[3],h.shape[4]):h}var Hc=An({conv1d_:function(t,e,n,r,o,a,i){void 0===o&&(o="NWC"),void 0===a&&(a=1);var s=mn(t,"x","conv1d"),u=mn(e,"filter","conv1d"),c=s,l=!1;2===s.rank&&(l=!0,c=s.as3D(1,s.shape[0],s.shape[1])),C(3===c.rank,(function(){return"Error in conv1d: input must be rank 3, but got rank "+c.rank+"."})),C(3===u.rank,(function(){return"Error in conv1d: filter must be rank 3, but got rank "+u.rank+"."})),null!=i&&C(A(r),(function(){return"Error in conv1d: pad must be an integer when using, dimRoundingMode "+i+" but got pad "+r+"."})),C(c.shape[2]===u.shape[1],(function(){return"Error in conv1d: depth of input ("+c.shape[2]+") must match input depth for filter "+u.shape[1]+"."})),C(Mo(n,a),(function(){return"Error in conv1D: Either stride or dilation must be 1. Got stride "+n+" and dilation '"+a+"'"})),C("NWC"===o,(function(){return"Error in conv1d: got dataFormat of "+o+" but only NWC is currently supported."}));var h=u.as4D(1,u.shape[0],u.shape[1],u.shape[2]),f=c.as4D(c.shape[0],1,c.shape[1],c.shape[2]),d=qc(f,h,[1,n],r,"NHWC",[1,a],i);return l?d.as2D(d.shape[2],d.shape[3]):d.as3D(d.shape[0],d.shape[2],d.shape[3])}}),qc=An({conv2d_:function(t,e,n,r,o,a,i){void 0===o&&(o="NHWC"),void 0===a&&(a=[1,1]);var s=mn(t,"x","conv2d"),u=mn(e,"filter","conv2d"),c=s,l=!1;3===s.rank&&(l=!0,c=s.as4D(1,s.shape[0],s.shape[1],s.shape[2])),C(4===c.rank,(function(){return"Error in conv2d: input must be rank 4, but got rank "+c.rank+"."})),C(4===u.rank,(function(){return"Error in conv2d: filter must be rank 4, but got rank "+u.rank+"."})),null!=i&&C(A(r),(function(){return"Error in conv2d: pad must be an integer when using, dimRoundingMode "+i+" but got pad "+r+"."}));var h="NHWC"===o?c.shape[3]:c.shape[1];C(h===u.shape[2],(function(){return"Error in conv2d: depth of input ("+h+") must match input depth for filter "+u.shape[2]+"."})),C(Mo(n,a),(function(){return"Error in conv2D: Either strides or dilations must be 1. Got strides "+n+" and dilations '"+a+"'"}));var f=Bo(o),d=So(c.shape,u.shape,n,a,r,i,!1,f),p=[u,c],v=Lt.runKernelFunc((function(t,e){var n=t.conv2d(c,u,d);return e([u,c]),n}),{x:c,filter:u},(function(t,e){var i=e,s=i[0],u=i[1];return C(Oo(a),(function(){return"Error in gradient of conv2D: dilation rates greater than 1 are not yet supported in gradients. Got dilations '"+a+"'"})),{x:function(){return Xc(u.shape,t,s,n,r,o)},filter:function(){return jc(u,t,s.shape,n,r,o)}}}),"Conv2D",d,p);return l?v.as3D(v.shape[1],v.shape[2],v.shape[3]):v}}),Kc=An({conv3d_:function(t,e,n,r,o,a){void 0===o&&(o="NDHWC"),void 0===a&&(a=[1,1,1]);var i=mn(t,"x","conv3d"),s=mn(e,"filter","conv3d"),u=i,c=!1;4===i.rank&&(c=!0,u=i.as5D(1,i.shape[0],i.shape[1],i.shape[2],i.shape[3])),C(5===u.rank,(function(){return"Error in conv3d: input must be rank 5, but got rank "+u.rank+"."})),C(5===s.rank,(function(){return"Error in conv3d: filter must be rank 5, but got rank "+s.rank+"."})),C(u.shape[4]===s.shape[3],(function(){return"Error in conv3d: depth of input ("+u.shape[4]+") must match input depth for filter "+s.shape[3]+"."})),C(function(t,e){return zc(t)||zc(e)}(n,a),(function(){return"Error in conv3D: Either strides or dilations must be 1. Got strides "+n+" and dilations '"+a+"'"})),C("NDHWC"===o,(function(){return"Error in conv3d: got dataFormat of "+o+" but only NDHWC is currently supported."}));var l=Ao(u.shape,s.shape,n,a,r),h=Lt.runKernelFunc((function(t,e){var n=t.conv3d(u,s,l);return e([u,s]),n}),{x:u,$filter:s},(function(t,e){C(zc(a),(function(){return"Error in gradient of conv3D: dilation rates greater than 1 are not yet supported in gradients. Got dilations '"+a+"'"}));var o=e[0],i=e[1];return{x:function(){return Gc(o.shape,t,i,n,r)},$filter:function(){return function(t,e,n,r,o){var a=t;4===t.rank&&(a=t.as5D(1,t.shape[0],t.shape[1],t.shape[2],t.shape[3]));var i=e;4===i.rank&&(i=e.as5D(1,e.shape[0],e.shape[1],e.shape[2],e.shape[3]));C(5===a.rank,(function(){return"Error in conv3dDerFilter: input must be rank 5, but got shape "+a.shape+"."})),C(5===i.rank,(function(){return"Error in conv3dDerFilter: dy must be rank 5, but got shape "+i.shape+"."})),C(5===n.length,(function(){return"Error in conv3dDerFilter: filterShape must be length 5, but got "+n+"."})),C(a.shape[4]===n[3],(function(){return"Error in conv3dDerFilter: depth of input "+a.shape[4]+") must match input depth in filter ("+n[3]+"."})),C(i.shape[4]===n[4],(function(){return"Error in conv3dDerFilter: depth of dy ("+i.shape[4]+") must match output depth for filter ("+n[4]+")."}));var s=Ao(a.shape,n,r,1,o);return Lt.runKernelFunc((function(t){return t.conv3dDerFilter(a,i,s)}),{x5D:a,dy5D:i})}(o,t,i.shape,n,r)}}}));return c?h.as4D(h.shape[1],h.shape[2],h.shape[3],h.shape[4]):h}}),jc=An({conv2dDerFilter_:function(t,e,n,r,o,a,i){void 0===a&&(a="NHWC");var s=t;3===t.rank&&(s=t.as4D(1,t.shape[0],t.shape[1],t.shape[2]));var u=e;3===u.rank&&(u=e.as4D(1,e.shape[0],e.shape[1],e.shape[2])),C(4===s.rank,(function(){return"Error in conv2dDerFilter: input must be rank 4, but got shape "+s.shape+"."})),C(4===u.rank,(function(){return"Error in conv2dDerFilter: dy must be rank 4, but got shape "+u.shape+"."})),C(4===n.length,(function(){return"Error in conv2dDerFilter: filterShape must be length 4, but got "+n+"."}));var c="NHWC"===a?s.shape[3]:s.shape[1],l="NHWC"===a?u.shape[3]:u.shape[1];C(c===n[2],(function(){return"Error in conv2dDerFilter: depth of input "+c+") must match input depth in filter ("+n[2]+"."})),C(l===n[3],(function(){return"Error in conv2dDerFilter: depth of dy ("+l+") must match output depth for filter ("+n[3]+")."})),null!=i&&C(A(o),(function(){return"Error in conv2dDerFilter: pad must be an integer when using, dimRoundingMode "+i+" but got pad "+o+"."}));var h=Bo(a),f=So(s.shape,n,r,1,o,i,!1,h);return Lt.runKernelFunc((function(t){return t.conv2dDerFilter(s,u,f)}),{x4D:s,dy4D:u})}}),Xc=An({conv2dDerInput_:Vc}),Yc=An({depthwiseConv2d_:function(t,e,n,r,o,a,i){void 0===o&&(o="NHWC"),void 0===a&&(a=[1,1]);var s=mn(t,"x","depthwiseConv2d"),u=mn(e,"filter","depthwiseConv2d"),c=s,l=!1;3===s.rank&&(l=!0,c=s.as4D(1,s.shape[0],s.shape[1],s.shape[2])),C(4===c.rank,(function(){return"Error in depthwiseConv2d: input must be rank 4, but got rank "+c.rank+"."})),C(4===u.rank,(function(){return"Error in depthwiseConv2d: filter must be rank 4, but got rank "+u.rank+"."})),C(c.shape[3]===u.shape[2],(function(){return"Error in depthwiseConv2d: number of input channels ("+c.shape[3]+") must match the inChannels dimension in filter "+u.shape[2]+"."})),null==a&&(a=[1,1]),C(Mo(n,a),(function(){return"Error in depthwiseConv2d: Either strides or dilations must be 1. Got strides "+n+" and dilations '"+a+"'"})),null!=i&&C(A(r),(function(){return"Error in depthwiseConv2d: pad must be an integer when using, dimRoundingMode "+i+" but got pad "+r+"."}));var h=So(c.shape,u.shape,n,a,r,i,!0),f=[c,u],d=Lt.runKernelFunc((function(t,e){var n=t.depthwiseConv2D(c,u,h);return e([c,u]),n}),{x:c,filter:u},(function(t,e){C(Oo(a),(function(){return"Error in gradient of depthwiseConv2d: dilation rates greater than 1 are not yet supported. Got dilations '"+a+"'"}));var n=e[0],r=e[1];return{x:function(){return $c(n.shape,t,r,h)},filter:function(){return Qc(n,t,r.shape,h)}}}),"DepthwiseConv2dNative",h,f);return l?d.as3D(d.shape[1],d.shape[2],d.shape[3]):d}}),$c=An({depthwiseConv2dDerInput_:function(t,e,n,r){var o=e,a=!1;3===e.rank&&(a=!0,o=e.as4D(1,e.shape[0],e.shape[1],e.shape[2]));var i=Lt.runKernelFunc((function(t){return t.depthwiseConv2DDerInput(o,n,r)}),{dy4D:o});return a?i.as3D(i.shape[1],i.shape[2],i.shape[3]):i}}),Qc=An({depthwiseConv2dDerFilter_:function(t,e,n,r){var o=t;3===t.rank&&(o=t.as4D(1,t.shape[0],t.shape[1],t.shape[2]));var a=e;return 3===a.rank&&(a=e.as4D(1,e.shape[0],e.shape[1],e.shape[2])),Lt.runKernelFunc((function(t){return t.depthwiseConv2DDerFilter(o,a,r)}),{x4D:o,dy4D:a})}}),Jc=An({separableConv2d_:function(t,e,n,r,o,a,i){void 0===a&&(a=[1,1]),void 0===i&&(i="NHWC");var s=mn(t,"x","separableConv2d"),u=mn(e,"depthwiseFilter","separableConv2d"),c=mn(n,"pointwiseFilter","separableConv2d"),l=s,h=!1;if(3===s.rank&&(h=!0,l=s.as4D(1,s.shape[0],s.shape[1],s.shape[2])),"NCHW"===i)throw new Error("separableConv2d currently does not support dataFormat NCHW; only NHWC is supported");C(4===l.rank,(function(){return"Error in separableConv2d: input must be rank 4, but got rank "+l.rank+"."})),C(4===u.rank,(function(){return"Error in separableConv2d: depthwise filter must be rank 4, but got rank "+u.rank+"."})),C(4===c.rank,(function(){return"Error in separableConv2d: pointwise filter must be rank 4, but got rank "+u.rank+"."})),C(1===c.shape[0],(function(){return"Error in separableConv2d: the first dimension of pointwise filter must be 1, but got "+c.shape[0]+"."})),C(1===c.shape[1],(function(){return"Error in separableConv2d: the second dimension of pointwise filter must be 1, but got "+c.shape[1]+"."}));var f=u.shape[2],d=u.shape[3];C(c.shape[2]===f*d,(function(){return"Error in separableConv2d: the third dimension of pointwise filter must be "+f*d+", but got "+c.shape[2]+"."}));var p=Yc(l,u,r,o,i,a),v=qc(p,c,1,"valid",i);return h?v.as3D(v.shape[1],v.shape[2],v.shape[3]):v}}),Zc=An({conv2dTranspose_:function(t,e,n,r,o,a){return Vc(n,mn(t,"x","conv2dTranspose"),mn(e,"filter","conv2dTranspose"),r,o,"NHWC",a)}}),tl=An({conv3dTranspose_:function(t,e,n,r,o){return Gc(n,mn(t,"x","conv3dTranspose"),mn(e,"filter","conv3dTranspose"),r,o)}});var el=An({matMul_:function(t,e,n,r){var o;void 0===n&&(n=!1),void 0===r&&(r=!1);var a=mn(t,"a","matMul"),i=mn(e,"b","matMul");o=Nt(a,i),a=o[0],i=o[1];var s=n?a.shape[a.rank-2]:a.shape[a.rank-1],u=r?i.shape[i.rank-1]:i.shape[i.rank-2],c=n?a.shape[a.rank-1]:a.shape[a.rank-2],l=r?i.shape[i.rank-2]:i.shape[i.rank-1],h=a.shape.slice(0,-2),f=i.shape.slice(0,-2),d=k(h),p=k(f);C(a.rank>=2&&i.rank>=2&&a.rank===i.rank,(function(){return"Error in matMul: inputs must have the same rank of at least 2, got ranks "+a.rank+" and "+i.rank+"."})),C(S(h,f),(function(){return"Error in matMul: outer dimensions ("+h+") and ("+f+") of Tensors with shapes "+a.shape+" and "+i.shape+" must match."})),C(s===u,(function(){return"Error in matMul: inner shapes ("+s+") and ("+u+") of Tensors with shapes "+a.shape+" and "+i.shape+" and transposeA="+n+" and transposeB="+r+" must match."}));var v=a.shape.slice(0,-2).concat([c,l]),m=n?a.as3D(d,s,c):a.as3D(d,c,s),g=r?i.as3D(p,l,u):i.as3D(p,u,l),y={transposeA:n,transposeB:r};return Lt.runKernelFunc((function(t,e){var o=t.batchMatMul(m,g,n,r);return e([m,g]),o}),{a:m,b:g},(function(t,e){var o=e,a=o[0],i=o[1];return n||r?!n&&r?{a:function(){return t.matMul(i,!1,!1)},b:function(){return t.matMul(a,!0,!1)}}:n&&!r?{a:function(){return i.matMul(t,!1,!0)},b:function(){return a.matMul(t,!1,!1)}}:{a:function(){return i.matMul(t,!0,!0)},b:function(){return t.matMul(a,!0,!0)}}:{a:function(){return t.matMul(i,!1,!0)},b:function(){return a.matMul(t,!0,!1)}}}),"BatchMatMul",y).reshape(v)}}),nl=An({dot_:function(t,e){var n=mn(t,"t1","dot"),r=mn(e,"t2","dot");C(!(1!==n.rank&&2!==n.rank||1!==r.rank&&2!==r.rank),(function(){return"Error in dot: inputs must all be rank 1 or 2, but got ranks "+n.rank+" and "+r.rank+"."}));var o=1===n.rank?n.size:n.shape[1],a=1===r.rank?r.size:r.shape[0];return C(o===a,(function(){return"Error in dot: inner dimensions of inputs must match, but got "+o+" and "+a+"."})),1===n.rank&&1===r.rank?n.as2D(1,-1).matMul(r.as2D(-1,1)).asScalar():1===n.rank&&2===r.rank?n.as2D(1,-1).matMul(r.as2D(r.shape[0],r.shape[1])).as1D():2===n.rank&&1===r.rank?n.matMul(r.as2D(-1,1)).as1D():n.matMul(r.as2D(r.shape[0],r.shape[1]))}}),rl=An({outerProduct_:function(t,e){var n=mn(t,"v1","outerProduct"),r=mn(e,"v2","outerProduct");return C(1===n.rank&&1===r.rank,(function(){return"Error in outerProduct: inputs must be rank 1, but got ranks "+n.rank+" and "+r.rank+"."})),n.as2D(-1,1).matMul(r.as2D(1,-1))}});var ol=An({reverse_:function(t,e){var n=mn(t,"x","reverse");if(0===n.rank)return n.clone();var r=O(e,n.shape);return Lt.runKernelFunc((function(t){return t.reverse(n,r)}),{$x:n},(function(t){return{$x:function(){return t.reverse(r)}}})).reshapeAs(n)}}),al=An({reverse1d_:function(t){var e=mn(t,"x","reverse");return C(1===e.rank,(function(){return"Error in reverse1D: x must be rank 1 but got rank "+e.rank+"."})),ol(e,0)}}),il=An({reverse2d_:function(t,e){var n=mn(t,"x","reverse");return C(2===n.rank,(function(){return"Error in reverse2D: x must be rank 2 but got rank "+n.rank+"."})),ol(n,e)}}),sl=An({reverse3d_:function(t,e){var n=mn(t,"x","reverse");return C(3===n.rank,(function(){return"Error in reverse3D: x must be rank 3 but got rank "+n.rank+"."})),ol(n,e)}}),ul=An({reverse4d_:function(t,e){var n=mn(t,"x","reverse");return C(4===n.rank,(function(){return"Error in reverse4D: x must be rank 4 but got rank "+n.rank+"."})),ol(n,e)}});function cl(t,e,n,r,o,a){var i=mn(t,"x","maxPool"),s=i,u=!1;3===i.rank&&(u=!0,s=i.as4D(1,i.shape[0],i.shape[1],i.shape[2])),null==r&&(r=[1,1]),C(4===s.rank,(function(){return"Error in maxPool: input must be rank 4 but got rank "+s.rank+"."})),C(Mo(n,r),(function(){return"Error in maxPool: Either strides or dilations must be 1. Got strides "+n+" and dilations '"+r+"'"})),null!=a&&C(A(o),(function(){return"Error in maxPool: pad must be an integer when using, dimRoundingMode "+a+" but got pad "+o+"."}));var c=Io(s.shape,e,n,r,o,a);if(1===c.filterWidth&&1===c.filterHeight&&S(c.inShape,c.outShape))return i.clone();var l=[s],h=Lt.runKernelFunc((function(t,e){var n=t.maxPool(s,c);return e([s,n]),n}),{x:s},(function(t,a){var i=a[0],s=a[1];return{x:function(){return function(t,e,n,r,o,a,i,s){var u=mn(t,"dy","maxPoolBackprop"),c=mn(e,"input","maxPoolBackprop"),l=mn(n,"output","maxPoolBackprop");C(c.rank===u.rank,(function(){return"Rank of input ("+c.rank+") does not match rank of dy ("+u.rank+")"})),null==a&&(a=[1,1]);C(Mo(o,a),(function(){return"Error in maxPoolBackProp: Either strides or dilations must be 1. Got strides "+o+" and dilations '"+a+"'"})),C(4===u.rank,(function(){return"Error in maxPoolBackprop: dy must be rank 4 but got rank "+u.rank+"."})),C(4===c.rank,(function(){return"Error in maxPoolBackprop: input must be rank 4 but got rank "+c.rank+"."})),null!=s&&C(A(i),(function(){return"Error in maxPoolBackprop: pad must be an integer when using, dimRoundingMode "+s+" but got pad "+i+"."}));var h=Io(c.shape,r,o,a,i,s);return Lt.runKernelFunc((function(t){return t.maxPoolBackprop(u,c,l,h)}),{$dy:u,$input:c})}(t,i,s,e,n,r,o)}}}),"MaxPool",c,l);return u?h.as3D(h.shape[1],h.shape[2],h.shape[3]):h}function ll(t,e,n,r,o,a){var i=mn(t,"x","avgPool","float32");null==r&&(r=[1,1]),C(Mo(n,r),(function(){return"Error in avgPool: Either strides or dilations must be 1. Got strides "+n+" and dilations '"+r+"'"}));var s=i,u=!1;3===i.rank&&(u=!0,s=i.as4D(1,i.shape[0],i.shape[1],i.shape[2])),C(4===s.rank,(function(){return"Error in avgPool: x must be rank 4 but got rank "+s.rank+"."})),null!=a&&C(A(o),(function(){return"Error in avgPool: pad must be an integer when using, dimRoundingMode "+a+" but got pad "+o+"."}));var c=Io(s.shape,e,n,r,o,a);if(1===c.filterWidth&&1===c.filterHeight&&S(c.inShape,c.outShape))return i.clone();var l=Lt.runKernelFunc((function(t){return t.avgPool(s,c)}),{x:s},(function(t){return{x:function(){return function(t,e,n,r,o,a){var i=mn(t,"dy","avgPoolBackprop"),s=mn(e,"input","avgPoolBackprop");C(s.rank===i.rank,(function(){return"Rank of input ("+s.rank+") does not match rank of dy ("+i.rank+")"})),null==o&&(o=[1,1]);C(Mo(r,o),(function(){return"Error in avgPoolBackprop: Either strides or dilations must be 1. Got strides "+r+" and dilations '"+o+"'"}));var u=s,c=i,l=!1;3===s.rank&&(l=!0,u=s.as4D(1,s.shape[0],s.shape[1],s.shape[2]),c=i.as4D(1,i.shape[0],i.shape[1],i.shape[2]));C(4===c.rank,(function(){return"Error in avgPoolBackprop: dy must be rank 4 but got rank "+c.rank+"."})),C(4===u.rank,(function(){return"Error in avgPoolBackprop: input must be rank 4 but got rank "+u.rank+"."}));var h=Io(u.shape,n,r,o,a),f=Lt.runKernelFunc((function(t){return t.avgPoolBackprop(c,u,h)}),{dy4D:c,input4D:u});if(l)return f.as3D(f.shape[1],f.shape[2],f.shape[3]);return f}(t,s,e,n,r,o)}}}),"AvgPool",c);return l=l.cast(i.dtype),u?l.as3D(l.shape[1],l.shape[2],l.shape[3]):l}var hl=An({maxPool_:function(t,e,n,r,o){return cl(t,e,n,1,r,o)}}),fl=An({avgPool_:function(t,e,n,r,o){return ll(t,e,n,1,r,o)}}),dl=An({pool_:function(t,e,n,r,o,a){null==o&&(o=[1,1]),null==a&&(a=1),0===r&&(r="valid");var i=mn(t,"x","maxPool"),s=i,u=!1;3===i.rank&&(u=!0,s=i.as4D(1,i.shape[0],i.shape[1],i.shape[2])),C(Mo(a,o),(function(){return"Error in pool: Either strides or dilations must be 1. Got strides "+a+" and dilations '"+o+"'"}));var c,l=Io(s.shape,e,a,o,r),h=[l.dilationHeight,l.dilationWidth];c="same"===r?function(t,e){var n=t.map((function(t,n){return t+(t-1)*(e[n]-1)})).map((function(t){return t-1})),r=n.map((function(t){return Math.floor(t/2)})),o=n.map((function(t,e){return t-r[e]}));return n.map((function(t,e){return[r[e],o[e]]}))}([l.filterHeight,l.filterWidth],h):[[0,0],[0,0]];var f=1===h[0]&&1===h[1],d=function(t,e,n){var r=n.map((function(t){return t[0]})),o=n.map((function(t){return t[1]})),a=t.concat(r,o),i=e.map((function(t,e){return(t-a[e]%t)%t})),s=o.map((function(t,e){return t+i[e]})),u=e.map((function(t,e){return[r[e],s[e]]})),c=e.map((function(t,e){return[0,i[e]]}));return[u,c]}([l.inHeight,l.inWidth],h,c),p=d[0],v=d[1],m=f?r:"valid",g=f?s:Mr(s,h,p),y=("avg"===n?function(){return ll(g,e,a,1,m)}:function(){return cl(g,e,a,1,m)})(),x=f?y:vr(y,h,v);return u?x.as3D(x.shape[1],x.shape[2],x.shape[3]):x}}),pl=An({maxPool3d_:function(t,e,n,r,o,a,i){void 0===a&&(a="NDHWC");var s=mn(t,"x","maxPool3d"),u=s,c=!1;4===s.rank&&(c=!0,u=s.as5D(1,s.shape[0],s.shape[1],s.shape[2],s.shape[3])),null==i&&(i=[1,1,1]),C(5===u.rank,(function(){return"Error in maxPool3d: x must be rank 5 but got rank "+u.rank+"."})),C("NDHWC"===a,(function(){return"Error in maxPool3d: Only NDHWC is currently supported, but got dataFormat of "+a})),C(Mo(n,i),(function(){return"Error in maxPool3d: Either strides or dilations must be 1. Got strides "+n+" and dilations '"+i+"'"})),null!=o&&C(A(r),(function(){return"Error in maxPool3d: pad must be an integer when using, dimRoundingMode "+o+" but got pad "+r+"."}));var l=ko(u.shape,e,n,i,r,o,a),h=Lt.runKernelFunc((function(t,e){var n=t.maxPool3d(u,l);return e([u,n]),n}),{x:u},(function(t,a){var s=a[0],u=a[1];return{x:function(){return function(t,e,n,r,o,a,i,s){var u=mn(t,"dy","maxPool3dBackprop"),c=mn(e,"input","maxPool3dBackprop"),l=mn(n,"output","maxPool3dBackprop"),h=u,f=c,d=l,p=!1;4===c.rank&&(p=!0,h=u.as5D(1,u.shape[0],u.shape[1],u.shape[2],u.shape[3]),f=c.as5D(1,c.shape[0],c.shape[1],c.shape[2],c.shape[3]),d=l.as5D(1,l.shape[0],l.shape[1],l.shape[2],l.shape[3]));C(5===h.rank,(function(){return"Error in maxPool3dBackprop: dy must be rank 5 but got rank "+h.rank+"."})),C(5===f.rank,(function(){return"Error in maxPool3dBackprop: input must be rank 5 but got rank "+f.rank+"."})),C(5===d.rank,(function(){return"Error in maxPool3dBackprop: output must be rank 5 but got rank "+d.rank+"."})),null==a&&(a=[1,1,1]);C(Mo(o,a),(function(){return"Error in maxPool3dBackprop: Either strides or dilations must be 1. Got strides "+o+" and dilations '"+a+"'"})),null!=s&&C(A(i),(function(){return"Error in maxPool3dBackprop: pad must be an integer when using, dimRoundingMode "+s+" but got pad "+i+"."}));var v=ko(f.shape,r,o,a,i,s),m=Lt.runKernelFunc((function(t){return t.maxPool3dBackprop(h,f,d,v)}),{dy5D:h,input5D:f});if(p)return m.as4D(m.shape[1],m.shape[2],m.shape[3],m.shape[4]);return m}(t,s,u,e,n,i,r,o)}}}));return c?h.as4D(h.shape[1],h.shape[2],h.shape[3],h.shape[4]):h}}),vl=An({avgPool3d_:function(t,e,n,r,o,a,i){void 0===a&&(a="NDHWC");var s=mn(t,"x","avgPool3d","float32"),u=s,c=!1;4===s.rank&&(c=!0,u=s.as5D(1,s.shape[0],s.shape[1],s.shape[2],s.shape[3])),null==i&&(i=[1,1,1]),C(5===u.rank,(function(){return"Error in avgPool3d: x must be rank 5 but got rank "+u.rank+"."})),C("NDHWC"===a,(function(){return"Error in avgPool3d: Only NDHWC is currently supported, but got dataFormat of "+a})),C(Mo(n,i),(function(){return"Error in avgPool3d: Either strides or dilations must be 1. Got strides "+n+" and dilations '"+i+"'"})),null!=o&&C(A(r),(function(){return"Error in avgPool3d: pad must be an integer when using, dimRoundingMode "+o+" but got pad "+r+"."}));var l=ko(u.shape,e,n,i,r,o,a),h=Lt.runKernelFunc((function(t){return t.avgPool3d(u,l)}),{x:u},(function(t){return{x:function(){return function(t,e,n,r,o,a,i){var s=mn(t,"dy","avgPool3dBackprop"),u=mn(e,"input","avgPool3dBackprop"),c=s,l=u,h=!1;4===u.rank&&(h=!0,c=s.as5D(1,s.shape[0],s.shape[1],s.shape[2],s.shape[3]),l=u.as5D(1,u.shape[0],u.shape[1],u.shape[2],u.shape[3]));C(5===c.rank,(function(){return"Error in avgPool3dBackprop: dy must be rank 5 but got rank "+c.rank+"."})),C(5===l.rank,(function(){return"Error in avgPool3dBackprop: input must be rank 5 but got rank "+l.rank+"."})),null==o&&(o=[1,1,1]);C(Mo(r,o),(function(){return"Error in avgPool3dBackprop: Either strides or dilations must be 1. Got strides "+r+" and dilations '"+o+"'"})),null!=i&&C(A(a),(function(){return"Error in maxPool3dBackprop: pad must be an integer when using, dimRoundingMode "+i+" but got pad "+a+"."}));var f=ko(l.shape,n,r,o,a,i),d=Lt.runKernelFunc((function(t){return t.avgPool3dBackprop(c,l,f)}),{dy5D:c,input5D:l});if(h)return d.as4D(d.shape[1],d.shape[2],d.shape[3],d.shape[4]);return d}(t,u,e,n,i,r,o)}}}));return h=h.cast(u.dtype),c?h.as4D(h.shape[1],h.shape[2],h.shape[3],h.shape[4]):h}});var ml=An({slice_:function(t,e,n){var r,o,a=mn(t,"x","slice");if(0===a.rank)throw new Error("Slicing scalar is not possible");(r="number"==typeof e?[e].concat(new Array(a.rank-1).fill(0)):e.length<a.rank?e.concat(new Array(a.rank-e.length).fill(0)):e.slice()).forEach((function(t){C(-1!==t,(function(){return"slice() does not support negative begin indexing."}))})),o=(o=null==n?new Array(a.rank).fill(-1):"number"==typeof n?[n].concat(new Array(a.rank-1).fill(-1)):n.length<a.rank?n.concat(new Array(a.rank-n.length).fill(-1)):n).map((function(t,e){return t>=0?t:(C(-1===t,(function(){return"Negative size values should be exactly -1 but got "+t+" for the slice() size at index "+e+"."})),a.shape[e]-r[e])})),eo(a,r,o);var i=a.shape,s={begin:r,size:o};return Lt.runKernelFunc((function(t){return t.slice(a,r,o)}),{x:a},(function(t){for(var e=[],n=0;n<t.rank;n++)e.push([r[n],i[n]-r[n]-o[n]]);return{x:function(){return t.pad(e)}}}),"Slice",s)}}),gl=An({slice1d_:function(t,e,n){var r=mn(t,"x","slice1d");return C(1===r.rank,(function(){return"slice1d expects a rank-1 tensor, but got a rank-"+r.rank+" tensor"})),ml(r,[e],[n])}}),yl=An({slice2d_:function(t,e,n){var r=mn(t,"x","slice2d");return C(2===r.rank,(function(){return"slice2d expects a rank-2 tensor, but got a rank-"+r.rank+" tensor"})),ml(r,e,n)}}),xl=An({slice3d_:function(t,e,n){var r=mn(t,"x","slice3d");return C(3===r.rank,(function(){return"slice3d expects a rank-3 tensor, but got a rank-"+r.rank+" tensor"})),ml(r,e,n)}}),bl=An({slice4d_:function(t,e,n){var r=mn(t,"x","slice4d");return C(4===r.rank,(function(){return"slice4d expects a rank-4 tensor, but got a rank-"+r.rank+" tensor"})),ml(r,e,n)}});function wl(t,e,n,r,o){return e.rank<n.rank&&(e=e.reshape(wn(e.shape,r))),t.rank<n.rank&&(t=t.reshape(wn(t.shape,r))),{x:function(){var r=t.mul(n.equal(e).cast(t.dtype));return null==o?r:r.transpose(o)}}}var Cl=An({all_:function(t,e,n){void 0===e&&(e=null),void 0===n&&(n=!1);var r=mn(t,"x","all","bool"),o=O(e,r.shape),a=o,i=En(a,r.rank);null!=i&&(r=r.transpose(i),a=In(a.length,r.rank));var s=Lt.runKernelFunc((function(t){return t.all(r,a)}),{$x:r});if(n){var u=wn(s.shape,o);return s.reshape(u)}return s}}),El=An({any_:function(t,e,n){void 0===e&&(e=null),void 0===n&&(n=!1);var r=mn(t,"x","any","bool"),o=O(e,r.shape),a=o,i=En(a,r.rank);null!=i&&(r=r.transpose(i),a=In(a.length,r.rank));var s=Lt.runKernelFunc((function(t){return t.any(r,a)}),{$x:r});if(n){var u=wn(s.shape,o);return s.reshape(u)}return s}}),Rl=An({argMax_:function(t,e){void 0===e&&(e=0);var n=mn(t,"x","argMax");null==e&&(e=0);var r=O(e,n.shape),o=En(r,n.rank);null!=o&&(n=n.transpose(o),r=In(r.length,n.rank));var a={axis:r[0]},i=[n];return Lt.runKernelFunc((function(t,e){var o=t.argMax(n,r[0]);return e([n]),o}),{x:n},(function(t,e){var n=e[0];return{x:function(){return Xn(n)}}}),"ArgMax",a,i)}}),Il=An({argMin_:function(t,e){void 0===e&&(e=0);var n=mn(t,"x","argMin");null==e&&(e=0);var r=O(e,n.shape),o=En(r,n.rank);return null!=o&&(n=n.transpose(o),r=In(r.length,n.rank)),Lt.runKernelFunc((function(t,e){var o=t.argMin(n,r[0]);return e([n]),o}),{$x:n},(function(t,e){var n=e[0];return{$x:function(){return Xn(n)}}}))}}),kl=An({logSumExp_:function(t,e,n){void 0===e&&(e=null),void 0===n&&(n=!1);var r=mn(t,"x","logSumExp"),o=O(e,r.shape),a=r.max(o,!0),i=r.sub(a).exp().sum(o).log(),s=a.reshape(i.shape).add(i);if(n){var u=wn(s.shape,o);return s.reshape(u)}return s}}),Sl=An({max_:function(t,e,n){void 0===e&&(e=null),void 0===n&&(n=!1);var r=mn(t,"x","max"),o=r,a=O(e,r.shape),i=a,s=En(i,r.rank);null!=s&&(r=r.transpose(s),i=In(i.length,r.rank));var u=[r],c=Lt.runKernelFunc((function(t,e){var n=t.max(r,i);return e([o,n]),n}),{x:r},(function(t,e){return wl(t,e[1],e[0],a,s)}),"Max",{axes:i},u,[!0]);if(n){var l=wn(c.shape,a);c=c.reshape(l)}return c}}),Al=An({mean_:function(t,e,n){void 0===e&&(e=null),void 0===n&&(n=!1);var r=mn(t,"x","mean"),o=O(e,r.shape),a=k(bn(r.shape,o)[1]);return vo((function(t){var r=On(a);return{value:(r.dtype===t.dtype?t:t.cast(r.dtype)).div(r).sum(e,n),gradFunc:function(e){var n=t.shape.slice();return o.forEach((function(t){n[t]=1})),e.reshape(n).mul(zn(t.shape,"float32")).div(a)}}}))(r)}}),Dl=An({min_:function(t,e,n){void 0===e&&(e=null),void 0===n&&(n=!1);var r=mn(t,"x","min"),o=r,a=O(e,r.shape),i=a,s=En(i,r.rank);null!=s&&(r=r.transpose(s),i=In(i.length,r.rank));var u=[r],c=Lt.runKernelFunc((function(t,e){var n=t.min(r,i);return e([o,n]),n}),{x:r},(function(t,e){return wl(t,e[1],e[0],a,s)}),"Min",{axes:i},u,[!0]);if(n){var l=wn(c.shape,a);c=c.reshape(l)}return c}}),Tl=An({moments_:function(t,e,n){void 0===e&&(e=null),void 0===n&&(n=!1);var r=O(e,(t=mn(t,"x","moments")).shape),o=t.mean(r,n),a=o.shape;n||(a=wn(o.shape,r));var i=t.toFloat().sub(o.reshape(a)).square();return{mean:o,variance:i.mean(r,n)}}}),Nl=An({sum_:function(t,e,n){void 0===e&&(e=null),void 0===n&&(n=!1);var r=mn(t,"x","sum");"bool"===r.dtype&&(r=r.toInt());var o=O(e,r.shape);return vo((function(t){var e=En(o,t.rank),r=o,a=t;null!=e&&(a=t.transpose(e),r=In(r.length,t.rank));var i=function(e){var n=t.shape.slice();return o.forEach((function(t){n[t]=1})),e.reshape(n).mul(zn(t.shape,"float32"))},s={axes:r},u=Lt.runKernelFunc((function(t){return t.sum(a,r)}),{x:a},(function(t){return{x:function(){return i(t)}}}),"Sum",s);if(n){var c=wn(u.shape,o);u=u.reshape(c)}return{value:u,gradFunc:i}}))(r)}}),Fl=An({prod_:function(t,e,n){void 0===e&&(e=null),void 0===n&&(n=!1);var r=mn(t,"x","prod");"bool"===r.dtype&&(r=r.toInt());var o=O(e,r.shape),a=En(o,r.rank),i=o,s=r;null!=a&&(s=r.transpose(a),i=In(i.length,r.rank));var u=Lt.runKernelFunc((function(t){return t.prod(s,i)}),{permutedX:s});if(n){var c=wn(u.shape,o);u=u.reshape(c)}return u}});var _l=An({elu_:function(t){var e=mn(t,"x","elu");return Lt.runKernelFunc((function(t,n){var r=t.elu(e);return n([r]),r}),{$x:e},(function(t,e){var n=e[0];return{$x:function(){return Lt.runKernelFunc((function(e){return e.eluDer(t,n)}),{dy:t,y:n})}}}))}}),Ol=An({leakyRelu_:function(t,e){void 0===e&&(e=.2);var n=mn(t,"x","leakyRelu");return hc(On(e).mul(n),n)}}),Ml=An({prelu_:function(t,e){var n=mn(t,"x","prelu"),r=mn(e,"alpha","prelu");return Lt.runKernelFunc((function(t,e){var o=t.prelu(n,r);return e([n,r]),o}),{x:n,alpha:r},(function(t,e){var n=e[0],r=e[1],o=n.greater(0);return{x:function(){return ec(o,t,t.mul(r))},alpha:function(){var e=ec(o,Xn(t),t.mul(n)),a=Eo(r.shape,t.shape);return a.length>0&&(e=e.sum(a)),e.reshape(r.shape)}}}),"Prelu")}}),Bl=An({relu_:function(t){var e=mn(t,"x","relu");return"bool"===e.dtype?e.toInt():Lt.runKernelFunc((function(t,n){var r=t.relu(e);return n([e]),r}),{x:e},(function(t,e){var n=e[0];return{x:function(){return t.mulStrict(n.step().toFloat())}}}),"Relu")}}),Pl=An({relu6_:function(t){var e=mn(t,"x","relu6");return"bool"===e.dtype?e.toInt():Lt.runKernelFunc((function(t,n){var r=t.relu6(e);return n([e]),r}),{x:e},(function(t,e){var n=e[0],r=n.lessEqual(6).mul(n.step());return{x:function(){return t.mulStrict(r.toFloat())}}}),"Relu6")}}),Ll=An({selu_:function(t){var e=mn(t,"x","selu");return Lt.runKernelFunc((function(t,n){var r=t.selu(e);return n([e]),r}),{$x:e},(function(t,e){var n=e[0];return{$x:function(){var e=n.greater(On(0)),r=On(bs),o=On(ws),a=t.mul(o),i=t.mul(r).mul(n.toFloat().exp());return ec(e,a,i)}}}))}});var Wl=An({transpose_:function(t,e){var n=mn(t,"x","transpose");if(null==e&&(e=n.shape.map((function(t,e){return e})).reverse()),C(n.rank===e.length,(function(){return"Error in transpose: rank of input "+n.rank+" must match length of perm "+e+"."})),e.forEach((function(t){C(t>=0&&t<n.rank,(function(){return"All entries in 'perm' must be between 0 and "+(n.rank-1)+" but got "+e}))})),n.rank<=1)return n.clone();var r={perm:e};return Lt.runKernelFunc((function(t){return t.transpose(n,e)}),{x:n},(function(t){var n=Rn(e);return{x:function(){return t.transpose(n)}}}),"Transpose",r)}});var Ul=An({localResponseNormalization_:function(t,e,n,r,o){void 0===e&&(e=5),void 0===n&&(n=1),void 0===r&&(r=1),void 0===o&&(o=.5);var a=mn(t,"x","localResponseNormalization");C(4===a.rank||3===a.rank,(function(){return"Error in localResponseNormalization: x must be rank 3 or 4 but got\n rank "+a.rank+"."})),C(A(e),(function(){return"Error in localResponseNormalization: depthRadius must be an integer but got depthRadius "+e+"."}));var i=a,s=!1;3===a.rank&&(s=!0,i=a.as4D(1,a.shape[0],a.shape[1],a.shape[2]));var u=Lt.runKernelFunc((function(t,a){var s=t.localResponseNormalization4D(i,e,n,r,o);return a([i,s]),s}),{x4D:i},(function(t,a){var i=a[0],s=a[1];return{x4D:function(){return Lt.runKernelFunc((function(a){return a.LRNGrad(t,i,s,e,n,r,o)}),{})}}}));return s?u.as3D(u.shape[1],u.shape[2],u.shape[3]):u}});var Vl=An({norm_:function(t,e,n,r){void 0===e&&(e="euclidean"),void 0===n&&(n=null),void 0===r&&(r=!1);var o=function t(e,n,r){void 0===r&&(r=null);if(0===e.rank)return e.abs();if(1!==e.rank&&null===r)return t(e.reshape([-1]),n,r);if(1===e.rank||"number"==typeof r||Array.isArray(r)&&1===r.length){if(1===n)return e.abs().sum(r);if(n===1/0)return e.abs().max(r);if(n===-1/0)return e.abs().min(r);if("euclidean"===n||2===n)return e.abs().pow(On(2,"int32")).sum(r).sqrt();throw new Error("Error in norm: invalid ord value: "+n)}if(Array.isArray(r)&&2===r.length){if(1===n)return e.abs().sum(r[0]).max(r[1]-1);if(n===1/0)return e.abs().sum(r[1]).max(r[0]);if(n===-1/0)return e.abs().sum(r[1]).min(r[0]);if("fro"===n||"euclidean"===n)return e.square().sum(r).sqrt();throw new Error("Error in norm: invalid ord value: "+n)}throw new Error("Error in norm: invalid axis: "+r)}(t=mn(t,"x","norm"),e,n),a=o.shape;if(r){var i=O(n,t.shape);a=wn(o.shape,i)}return o.reshape(a)}});var zl=An({basicLSTMCell_:function(t,e,n,r,o,a){var i=mn(t,"forgetBias","basicLSTMCell"),s=mn(e,"lstmKernel","basicLSTMCell"),u=mn(n,"lstmBias","basicLSTMCell"),c=mn(r,"data","basicLSTMCell"),l=mn(o,"c","basicLSTMCell"),h=mn(a,"h","basicLSTMCell"),f=c.concat(h,1).matMul(s).add(u),d=f.shape[0],p=f.shape[1]/4,v=[d,p],m=f.slice([0,0],v),g=f.slice([0,p],v),y=f.slice([0,2*p],v),x=f.slice([0,3*p],v),b=m.sigmoid().mulStrict(g.tanh()).addStrict(l.mulStrict(i.add(y).sigmoid())),w=b.tanh().mulStrict(x.sigmoid());return[b,w]}}),Gl=An({multiRNNCell_:function(t,e,n,r){for(var o=mn(e,"data","multiRNNCell"),a=gn(n,"c","multiRNNCell"),i=gn(r,"h","multiRNNCell"),s=o,u=[],c=0;c<t.length;c++){var l=t[c](s,a[c],i[c]);u.push(l[0]),u.push(l[1]),s=l[1]}var h=[],f=[];for(c=0;c<u.length;c+=2)h.push(u[c]),f.push(u[c+1]);return[h,f]}});var Hl=An({movingAverage_:function(t,e,n,r,o){void 0===o&&(o=!0);var a=mn(t,"v","movingAverage"),i=mn(e,"x","movingAverage"),s=mn(n,"decay","movingAverage");Ft(a,i),C(S(a.shape,i.shape),(function(){return"Shape mismatch in v and x"}));var u=On(1),c=u.sub(s),l=i.sub(a).mul(c);if(o){C(null!=r,(function(){return"When using zeroDebias: true, step is required."}));var h=mn(r,"step","movingAverage");l=l.div(u.sub(xc(s,h)))}return a.add(l)}});var ql=An({stridedSlice_:function(t,e,n,r,o,a,i,s,u){if(void 0===o&&(o=0),void 0===a&&(a=0),void 0===i&&(i=0),void 0===s&&(s=0),void 0===u&&(u=0),null==r&&(r=new Array(e.length)),0!==i)throw new Error("ellipsis mask is not yet supported");var c=mn(t,"x","stridedSlice"),l=no(s),h=c.shape.slice();l.forEach((function(t){e[t]=0,n[t]=1,h.splice(t,0,1)})),c=c.reshape(h);for(var f=0;f<c.rank;f++)e[f]=oo(o,e,r,c.shape,f),n[f]=ao(a,n,r,c.shape,f),r[f]=r[f]||1;var d=no(u);d.forEach((function(t){n[t]=e[t]+1,r[t]=1}));var p=ro(e,n,r),v=p.filter((function(t,e){return-1===d.indexOf(e)}));return r.every((function(t){return 1===t}))?ml(c,e,p).reshape(v):Lt.runKernelFunc((function(t){return t.stridedSlice(c,e,n,r)}),{$x:c}).reshape(v)}});var Kl=An({topk_:function(t,e,n){void 0===e&&(e=1),void 0===n&&(n=!0);var r=mn(t,"x","topk");if(0===r.rank)throw new Error("topk() expects the input to be of rank 1 or higher");var o=r.shape[r.shape.length-1];if(e>o)throw new Error("'k' passed to topk() must be <= the last dimension ("+o+") but got "+e);var a=Lt.runKernelFunc((function(t){return t.topk(r,e,n)}),{$x:r});return{values:a[0],indices:a[1]}}});var jl=An({scatterND_:function(t,e,n){var r=mn(t,"indices","scatterND","int32"),o=mn(e,"updates","scatterND");return Jr(o,r,n),Lt.runKernelFunc((function(t){return t.scatterND(r,o,n)}),{indices:r,updates:o},null,"ScatterNd",{shape:n})}});var Xl=An({fft_:function(t){C("complex64"===t.dtype,(function(){return"The dtype for tf.spectral.fft() must be complex64 but got "+t.dtype+"."}));var e=t.shape[t.shape.length-1],n=t.size/e,r=t.as2D(n,e);return Lt.runKernelFunc((function(t){return t.fft(r)}),{input:t}).reshape(t.shape)}}),Yl=An({ifft_:function(t){C("complex64"===t.dtype,(function(){return"The dtype for tf.spectral.ifft() must be complex64 but got "+t.dtype+"."}));var e=t.shape[t.shape.length-1],n=t.size/e,r=t.as2D(n,e);return Lt.runKernelFunc((function(t){return t.ifft(r)}),{input:t}).reshape(t.shape)}}),$l=An({rfft_:function(t,e){C("float32"===t.dtype,(function(){return"The dtype for rfft() must be real value but got "+t.dtype}));var n,r=t.shape[t.shape.length-1],o=t.size/r;if(null!=e&&e<r){var a=t.shape.map((function(t){return 0})),i=t.shape.map((function(t){return t}));i[t.shape.length-1]=e,n=t.slice(a,i),r=e}else if(null!=e&&e>r){var s=t.shape.map((function(t){return t}));s[t.shape.length-1]=e-r,n=t.concat(Gn(s),t.shape.length-1),r=e}else n=t;var u=n.zerosLike(),c=Dn(n,u).as2D(o,r),l=Xl(c),h=Math.floor(r/2)+1,f=Tn(l),d=Nn(l),p=f.split([h,r-h],f.shape.length-1),v=d.split([h,r-h],d.shape.length-1),m=n.shape.slice();return m[n.shape.length-1]=h,Dn(p[0],v[0]).reshape(m)}}),Ql=An({irfft_:function(t){var e=t.shape[t.shape.length-1],n=t.size/e;if(e<=2){var r=t.as2D(n,e),o=Yl(r);return Tn(o)}var a=[n,2*(e-1)],i=Tn(t).as2D(n,e),s=Nn(t).as2D(n,e),u=i.slice([0,1],[n,e-2]).reverse(1),c=s.slice([0,1],[n,e-2]).reverse(1).mul(On(-1)),l=i.concat(u,1),h=s.concat(c,1);return r=Dn(l,h).as2D(a[0],a[1]),o=Yl(r),Tn(o)}}),Jl=Object.freeze({fft:Xl,ifft:Yl,rfft:$l,irfft:Ql});var Zl=An({sparseToDense_:function(t,e,n,r){void 0===r&&(r=0);var o=mn(t,"sparseIndices","sparseToDense","int32"),a=mn(e,"sparseValues","sparseToDense"),i=mn(r,"defaultValue","sparseToDense",a.dtype);return function(t,e,n,r){if("int32"!==t.dtype)throw new Error("tf.sparseToDense() expects the indices to be int32 type, but the dtype was "+t.dtype+".");if(t.rank>2)throw new Error("sparseIndices should be a scalar, vector, or matrix, but got shape "+t.shape+".");var o=t.rank>0?t.shape[0]:1,a=t.rank>1?t.shape[1]:1;if(n.length!==a)throw new Error("outputShape has incorrect number of elements:, "+n.length+", should be: "+a+".");var i=e.size;if(0!==e.rank&&(1!==e.rank||i!==o))throw new Error("sparseValues has incorrect shape "+e.shape+", should be [] or ["+o+"]");if(e.dtype!==r.dtype)throw new Error("sparseValues.dtype must match defaultValues.dtype")}(o,a,n,i),Lt.runKernelFunc((function(t){return t.sparseToDense(o,a,n,i)}),{$sparseIndices:o,$sparseValues:a,$defaultValue:i})}});var th=An({gatherND_:function(t,e){var n=mn(e,"indices","gatherND","int32"),r=mn(t,"x","gatherND");return Lt.runKernelFunc((function(t){return t.gatherND(r,n)}),{x:r,indices:n},null,"GatherNd")}});var eh=An({diag_:function(t){var e=mn(t,"x","diag").flatten(),n=t.shape.concat(t.shape);return Lt.runKernelFunc((function(t){return t.diag(e)}),{$x:e}).reshape(n)}});var nh=An({dropout_:function(t,e,n,r){var o=mn(t,"x","dropout");if(C("float32"===o.dtype,(function(){return"x has to be a floating point tensor since it's going to be scaled, but got a "+o.dtype+" tensor instead."})),C(e>=0&&e<1,(function(){return"rate must be a float in the range [0, 1), but got "+e+"."})),0===e)return t instanceof wt?o.clone():o;var a=function(t,e){if(null==e)return t.shape.slice();if(S(t.shape,e))return e;if(t.shape.length===e.length){for(var n=[],r=0;r<t.shape.length;r++)null==e[r]&&null!=t.shape[r]?n.push(t.shape[r]):n.push(e[r]);return n}return e}(o,n),i=1-e,s=_r(a,0,1,"float32",r).add(i).floor().div(i);return o.mul(s)}});function rh(t,e,n){for(var r=1-t%2,o=new Float32Array(t),a=0;a<t;++a){var i=2*Math.PI*a/(t+r-1);o[a]=e-n*Math.cos(i)}return Mn(o,"float32")}var oh=An({hannWindow_:function(t){return rh(t,.5,.5)}}),ah=An({hammingWindow_:function(t){return rh(t,.54,.46)}}),ih=An({frame_:function(t,e,n,r,o){void 0===r&&(r=!1),void 0===o&&(o=0);for(var a=0,i=[];a+e<=t.size;)i.push(ml(t,a,e)),a+=n;if(r)for(;a<t.size;){var s=a+e-t.size,u=Yn([ml(t,a,e-s),Hn([s],o)]);i.push(u),a+=n}return 0===i.length?Bn([],[0,e]):Yn(i).as2D(i.length,e)}}),sh=An({stft_:function(t,e,n,r,o){var a;void 0===o&&(o=oh),null==r&&(a=e,r=Math.floor(Math.pow(2,Math.ceil(Math.log(a)/Math.log(2)))));for(var i=ih(t,e,n),s=gc(i,o(e)),u=[],c=0;c<i.shape[0];c++)u.push($l(s.slice([c,0],[1,e]),r));return Yn(u)}}),uh=Object.freeze({hannWindow:oh,hammingWindow:ah,frame:ih,stft:sh});var ch,lh=function(t,e,o){return void 0===o&&(o=1),n(this,void 0,void 0,(function(){var n,a,i,s,u,c,l,h,f,d,p,v,m,g;return r(this,(function(r){switch(r.label){case 0:return n=mn(t,"predictions","inTopK"),a=mn(e,"targets","inTopK"),C(n.rank>1,(function(){return"inTopK() expects the predictions to be of rank 2 or higher, but got "+n.rank})),C(n.rank-1===a.rank,(function(){return"predictions rank should be 1 larger than targets rank, but got predictions rank "+n.rank+" and targets rank "+a.rank})),E(n.shape.slice(0,n.shape.length-1),a.shape,"predictions's shape should be align with the targets' shape, except the last dimension."),i=n.shape[n.shape.length-1],C(o>0&&o<=i,(function(){return"'k' passed to inTopK() must be > 0 && <= the predictions last dimension ("+i+"), but got "+o})),[4,n.data()];case 1:return s=r.sent(),[4,a.data()];case 2:for(u=r.sent(),c=[s.length/i,i],h=c[1],f=B("bool",l=c[0]),d=0;d<l;d++){for(p=d*h,v=s.subarray(p,p+h),m=[],g=0;g<v.length;g++)m.push({value:v[g],index:g});for(m.sort((function(t,e){return e.value-t.value})),f[d]=0,g=0;g<o;g++)if(m[g].index===u[d]){f[d]=1;break}}return t!==n&&n.dispose(),e!==a&&a.dispose(),[2,Fn(f,a.shape,"bool")]}}))}))};!function(t){t[t.NONE=0]="NONE",t[t.MEAN=1]="MEAN",t[t.SUM=2]="SUM",t[t.SUM_BY_NONZERO_WEIGHTS=3]="SUM_BY_NONZERO_WEIGHTS"}(ch||(ch={}));var hh=An({absoluteDifference_:function(t,e,n,r){void 0===r&&(r=ch.SUM_BY_NONZERO_WEIGHTS);var o=mn(t,"labels","absoluteDifference"),a=mn(e,"predictions","absoluteDifference"),i=null;null!=n&&(i=mn(n,"weights","absoluteDifference")),E(o.shape,a.shape,"Error in absoluteDifference: ");var s=o.sub(a).abs();return fh(s,i,r)}}),fh=An({computeWeightedLoss_:function(t,e,n){void 0===n&&(n=ch.SUM_BY_NONZERO_WEIGHTS);var r=mn(t,"losses","computeWeightedLoss"),o=null;null!=e&&(o=mn(e,"weights","computeWeightedLoss"));var a=null==o?r:r.mul(o);if(n===ch.NONE)return a;if(n===ch.SUM)return a.sum();if(n===ch.MEAN){if(null==o)return a.mean();var i=r.size/o.size,s=a.sum().div(o.sum());return i>1?s.div(On(i)):s}if(n===ch.SUM_BY_NONZERO_WEIGHTS){if(null==o)return a.sum().div(On(r.size));var u=o.mul(zn(r.shape)).notEqual(On(0)).sum().toFloat();return a.sum().div(u)}throw Error("Unknown reduction: "+n)}}),dh=An({cosineDistance_:function(t,e,n,r,o){void 0===o&&(o=ch.SUM_BY_NONZERO_WEIGHTS);var a=mn(t,"labels","cosineDistance"),i=mn(e,"predictions","cosineDistance"),s=null;null!=r&&(s=mn(r,"weights","cosineDistance")),E(a.shape,i.shape,"Error in cosineDistance: ");var u=On(1).sub(a.mul(i).sum(n,!0));return fh(u,s,o)}}),ph=An({hingeLoss_:function(t,e,n,r){void 0===r&&(r=ch.SUM_BY_NONZERO_WEIGHTS);var o=mn(t,"labels","hingeLoss"),a=mn(e,"predictions","hingeLoss"),i=null;null!=n&&(i=mn(n,"weights","hingeLoss")),E(o.shape,a.shape,"Error in hingeLoss: ");var s=On(1);o=On(2).mul(o).sub(s);var u=s.sub(o.mul(a)).relu();return fh(u,i,r)}}),vh=An({huberLoss_:function(t,e,n,r,o){void 0===r&&(r=1),void 0===o&&(o=ch.SUM_BY_NONZERO_WEIGHTS);var a=mn(t,"labels","huberLoss"),i=mn(e,"predictions","huberLoss"),s=null;null!=n&&(s=mn(n,"weights","huberLoss")),E(a.shape,i.shape,"Error in huberLoss: ");var u=On(r),c=i.sub(a).abs(),l=dc(c,u),h=c.sub(l),f=On(.5).mul(l.square()).add(u.mul(h));return fh(f,s,o)}}),mh=An({logLoss_:function(t,e,n,r,o){void 0===r&&(r=1e-7),void 0===o&&(o=ch.SUM_BY_NONZERO_WEIGHTS);var a=mn(t,"labels","logLoss"),i=mn(e,"predictions","logLoss"),s=null;null!=n&&(s=mn(n,"weights","logLoss")),E(a.shape,i.shape,"Error in logLoss: ");var u=On(1),c=On(r),l=a.mul(i.add(c).log()).neg().sub(u.sub(a).mul(u.sub(i).add(c).log()));return fh(l,s,o)}}),gh=An({meanSquaredError_:function(t,e,n,r){void 0===r&&(r=ch.SUM_BY_NONZERO_WEIGHTS);var o=mn(t,"labels","meanSquaredError"),a=mn(e,"predictions","meanSquaredError"),i=null;null!=n&&(i=mn(n,"weights","meanSquaredError")),E(o.shape,a.shape,"Error in meanSquaredError: ");var s=o.squaredDifference(a);return fh(s,i,r)}}),yh=An({sigmoidCrossEntropy_:function(t,e,n,r,o){void 0===r&&(r=0),void 0===o&&(o=ch.SUM_BY_NONZERO_WEIGHTS);var a=mn(t,"multiClassLabels","sigmoidCrossEntropy"),i=mn(e,"logits","sigmoidCrossEntropy"),s=null;if(null!=n&&(s=mn(n,"weights","sigmoidCrossEntropy")),E(a.shape,i.shape,"Error in sigmoidCrossEntropy: "),r>0){var u=On(r),c=On(1),l=On(.5);a=a.mul(c.sub(u)).add(l.mul(u))}var h=function(t,e){var n=mn(t,"labels","sigmoidCrossEntropyWithLogits"),r=mn(e,"logits","sigmoidCrossEntropyWithLogits");E(n.shape,r.shape,"Error in sigmoidCrossEntropyWithLogits: ");var o=r.relu(),a=r.mul(n),i=r.abs().neg().exp().log1p();return o.sub(a).add(i)}(a,i);return fh(h,s,o)}}),xh=An({softmaxCrossEntropy_:function(t,e,n,r,o){void 0===r&&(r=0),void 0===o&&(o=ch.SUM_BY_NONZERO_WEIGHTS);var a=mn(t,"onehotLabels","softmaxCrossEntropy"),i=mn(e,"logits","softmaxCrossEntropy"),s=null;if(null!=n&&(s=mn(n,"weights","softmaxCrossEntropy")),E(a.shape,i.shape,"Error in softmaxCrossEntropy: "),r>0){var u=On(r),c=On(1),l=On(a.shape[1]);a=a.mul(c.sub(u)).add(u.div(l))}var h=function(t,e,n){if(void 0===n&&(n=-1),-1===n&&(n=e.rank-1),n!==e.rank-1)throw Error("Softmax cross entropy along a non-last dimension is not yet supported. Labels / logits was rank "+e.rank+" and dim was "+n);return vo((function(t,e,r){var o=e.logSumExp([n],!0),a=e.toFloat().sub(o);r([t,a]);return{value:a.mul(t).neg().sum([n]),gradFunc:function(t,e){var r=e[0],o=e[1],a=wn(t.shape,[n]);return[t.reshape(a).mul(r.toFloat().sub(o.exp())),t.reshape(a).mul(o.exp().sub(r.toFloat()))]}}}))(t,e)}(a,i);return fh(h,s,o)}}),bh=Object.freeze({get Reduction(){return ch},absoluteDifference:hh,computeWeightedLoss:fh,cosineDistance:dh,hingeLoss:ph,huberLoss:vh,logLoss:mh,meanSquaredError:gh,sigmoidCrossEntropy:yh,softmaxCrossEntropy:xh});function wh(t,e){return void 0===e&&(e=!1),Lt.tidy((function(){if(2!==t.shape.length)throw new Error("qr2d() requires a 2D Tensor, but got a "+t.shape.length+"D Tensor.");for(var n=t.shape[0],r=t.shape[1],o=Cr(n),a=t.clone(),i=Bn([[1]],[1,1]),s=i.clone(),u=n>=r?r:n,c=function(t){var e,u=a,c=s,l=o;e=Lt.tidy((function(){var e=a.slice([t,t],[n-t,1]),u=e.norm(),c=a.slice([t,t],[1,1]),l=Bn([[-1]]).where(c.greater(0),Bn([[1]])),h=c.sub(l.mul(u)),f=e.div(h);s=1===f.shape[0]?i.clone():i.concat(f.slice([1,0],[f.shape[0]-1,f.shape[1]]),0);var d=l.matMul(h).div(u).neg(),p=a.slice([t,0],[n-t,r]),v=d.mul(s);if(0===t)a=p.sub(v.matMul(s.transpose().matMul(p)));else{var m=p.sub(v.matMul(s.transpose().matMul(p)));a=a.slice([0,0],[t,r]).concat(m,0)}var g=o.slice([0,t],[n,o.shape[1]-t]);if(0===t)o=g.sub(g.matMul(s).matMul(v.transpose()));else{var y=g.sub(g.matMul(s).matMul(v.transpose()));o=o.slice([0,0],[n,t]).concat(y,1)}return[s,a,o]})),s=e[0],a=e[1],o=e[2],tn([u,c,l])},l=0;l<u;++l)c(l);return!e&&n>r&&(o=o.slice([0,0],[n,r]),a=a.slice([0,0],[r,r])),[o,a]}))}var Ch=An({bandPart_:function(t,e,n){if(e%1!=0)throw new Error("bandPart(): numLower must be an integer, got "+e+".");if(n%1!=0)throw new Error("bandPart(): numUpper must be an integer, got "+n+".");var r=mn(t,"a","bandPart");if(r.rank<2)throw new Error("bandPart(): Rank must be at least 2, got "+r.rank+".");var o=r.shape,a=r.shape.slice(-2),i=a[0],s=a[1];if(!(e<=i))throw new Error("bandPart(): numLower ("+e+") must not be greater than the number of rows ("+i+").");if(!(n<=s))throw new Error("bandPart(): numUpper ("+n+") must not be greater than the number of columns ("+s+").");e<0&&(e=i),n<0&&(n=s);var u=Kn(0,i,1,"int32").reshape([-1,1]),c=Kn(0,s,1,"int32"),l=Cc(u,c),h=Qu(l.lessEqual(On(+e,"int32")),l.greaterEqual(On(-n,"int32"))),f=Gn([i,s],r.dtype);return Pr(Ur(r.reshape([-1,i,s])).map((function(t){return ec(h,t,f)}))).reshape(o)}}),Eh=An({gramSchmidt_:function(t){var e;if(Array.isArray(t)){e=!1,C(null!=t&&t.length>0,(function(){return"Gram-Schmidt process: input must not be null, undefined, or empty"}));for(var n=t[0].shape[0],r=function(e){C(t[e].shape[0]===n,(function(){return"Gram-Schmidt: Non-unique lengths found in the input vectors: ("+t[e].shape[0]+" vs. "+n+")"}))},o=1;o<t.length;++o)r(o)}else e=!0,t=tr(t,t.shape[0],0).map((function(t){return Br(t,[0])}));C(t.length<=t[0].shape[0],(function(){return"Gram-Schmidt: Number of vectors ("+t.length+") exceeds number of dimensions ("+t[0].shape[0]+")."}));var a=[],i=t,s=function(t){a.push(Lt.tidy((function(){var e=i[t];if(t>0)for(var n=0;n<t;++n){var r=Nl(a[n].mulStrict(e)).mul(a[n]);e=e.sub(r)}return e.div(Vl(e,"euclidean"))})))};for(o=0;o<t.length;++o)s(o);return e?Pr(a,0):a}}),Rh=An({qr_:function(t,e){if(void 0===e&&(e=!1),t.rank<2)throw new Error("qr() requires input tensor to have a rank >= 2, but got rank "+t.rank);if(2===t.rank)return wh(t,e);var n=t.shape.slice(0,t.shape.length-2).reduce((function(t,e){return t*e})),r=Ur(t.reshape([n,t.shape[t.shape.length-2],t.shape[t.shape.length-1]]),0),o=[],a=[];return r.forEach((function(t){var n=wh(t,e),r=n[0],i=n[1];o.push(r),a.push(i)})),[Pr(o,0).reshape(t.shape),Pr(a,0).reshape(t.shape)]}}),Ih=Object.freeze({bandPart:Ch,gramSchmidt:Eh,qr:Rh});function kh(t,e,n,r,o,a){null==r&&(r=.5),null==o&&(o=Number.NEGATIVE_INFINITY),null==a&&(a=0);var i=t.shape[0];return n=Math.min(n,i),C(0<=r&&r<=1,(function(){return"iouThreshold must be in [0, 1], but was '"+r+"'"})),C(2===t.rank,(function(){return"boxes must be a 2D tensor, but was of rank '"+t.rank+"'"})),C(4===t.shape[1],(function(){return"boxes must have 4 columns, but 2nd dimension was "+t.shape[1]})),C(1===e.rank,(function(){return"scores must be a 1D tensor"})),C(e.shape[0]===i,(function(){return"scores has incompatible shape with boxes. Expected "+i+", but was "+e.shape[0]})),C(0<=a&&a<=1,(function(){return"softNmsSigma must be in [0, 1], but was '"+a+"'"})),{maxOutputSize:n,iouThreshold:r,scoreThreshold:o,softNmsSigma:a}}var Sh=An({resizeBilinear_:function(t,e,n){void 0===n&&(n=!1);var r=mn(t,"images","resizeBilinear");C(3===r.rank||4===r.rank,(function(){return"Error in resizeBilinear: x must be rank 3 or 4, but got rank "+r.rank+"."})),C(2===e.length,(function(){return"Error in resizeBilinear: new shape must 2D, but got shape "+e+"."}));var o=r,a=!1;3===r.rank&&(a=!0,o=r.as4D(1,r.shape[0],r.shape[1],r.shape[2]));var i=e[0],s=e[1],u=Lt.runKernelFunc((function(t,e){return e([o]),t.resizeBilinear(o,i,s,n)}),{x:o},(function(t,e){return{x:function(){return Lt.runKernelFunc((function(r){return r.resizeBilinearBackprop(t,e[0],n)}),{})}}}),"ResizeBilinear",{alignCorners:n,newHeight:i,newWidth:s});return a?u.as3D(u.shape[1],u.shape[2],u.shape[3]):u}}),Ah=An({resizeNearestNeighbor_:function(t,e,n){void 0===n&&(n=!1);var r=mn(t,"images","resizeNearestNeighbor");C(3===r.rank||4===r.rank,(function(){return"Error in resizeNearestNeighbor: x must be rank 3 or 4, but got rank "+r.rank+"."})),C(2===e.length,(function(){return"Error in resizeNearestNeighbor: new shape must 2D, but got shape "+e+"."})),C("float32"===r.dtype||"int32"===r.dtype,(function(){return"`images` must have `int32` or `float32` as dtype"}));var o=r,a=!1;3===r.rank&&(a=!0,o=r.as4D(1,r.shape[0],r.shape[1],r.shape[2]));var i=e[0],s=e[1],u=Lt.runKernelFunc((function(t,e){return e([o]),t.resizeNearestNeighbor(o,i,s,n)}),{batchImages:o},(function(t,e){return{batchImages:function(){return Lt.runKernelFunc((function(r){return r.resizeNearestNeighborBackprop(t,e[0],n)}),{})}}}));return a?u.as3D(u.shape[1],u.shape[2],u.shape[3]):u}}),Dh=An({nonMaxSuppression_:function(t,e,n,r,o){void 0===r&&(r=.5),void 0===o&&(o=Number.NEGATIVE_INFINITY);var a=mn(t,"boxes","nonMaxSuppression"),i=mn(e,"scores","nonMaxSuppression"),s=kh(a,i,n,r,o);n=s.maxOutputSize,r=s.iouThreshold,o=s.scoreThreshold;var u={maxOutputSize:n,iouThreshold:r,scoreThreshold:o};return Lt.runKernelFunc((function(t){return t.nonMaxSuppression(a,i,n,r,o)}),{boxes:a,scores:i},null,"NonMaxSuppressionV3",u)}}),Th=function(t,e,o,a,i){return void 0===a&&(a=.5),void 0===i&&(i=Number.NEGATIVE_INFINITY),n(this,void 0,void 0,(function(){var n,s,u,c,l,h,f;return r(this,(function(r){switch(r.label){case 0:return n=mn(t,"boxes","nonMaxSuppressionAsync"),s=mn(e,"scores","nonMaxSuppressionAsync"),u=kh(n,s,o,a,i),o=u.maxOutputSize,a=u.iouThreshold,i=u.scoreThreshold,[4,Promise.all([n.data(),s.data()])];case 1:return c=r.sent(),l=c[0],h=c[1],f=jo(l,h,o,a,i),n!==t&&n.dispose(),s!==e&&s.dispose(),[2,f]}}))}))},Nh=An({nonMaxSuppressionWithScore_:function(t,e,n,r,o,a){void 0===r&&(r=.5),void 0===o&&(o=Number.NEGATIVE_INFINITY),void 0===a&&(a=0);var i=mn(t,"boxes","nonMaxSuppression"),s=mn(e,"scores","nonMaxSuppression"),u=kh(i,s,n,r,o,a),c={maxOutputSize:n=u.maxOutputSize,iouThreshold:r=u.iouThreshold,scoreThreshold:o=u.scoreThreshold,softNmsSigma:a=u.softNmsSigma},l=Lt.runKernel("NonMaxSuppressionV5",{boxes:i,scores:s},c);return{selectedIndices:l[0],selectedScores:l[1]}}}),Fh=function(t,e,o,a,i,s){return void 0===a&&(a=.5),void 0===i&&(i=Number.NEGATIVE_INFINITY),void 0===s&&(s=0),n(this,void 0,void 0,(function(){var n,u,c,l,h,f,d;return r(this,(function(r){switch(r.label){case 0:return n=mn(t,"boxes","nonMaxSuppressionAsync"),u=mn(e,"scores","nonMaxSuppressionAsync"),c=kh(n,u,o,a,i,s),o=c.maxOutputSize,a=c.iouThreshold,i=c.scoreThreshold,s=c.softNmsSigma,[4,Promise.all([n.data(),u.data()])];case 1:return l=r.sent(),h=l[0],f=l[1],d=Xo(h,f,o,a,i,s),n!==t&&n.dispose(),u!==e&&u.dispose(),[2,d]}}))}))},_h=An({cropAndResize_:function(t,e,n,r,o,a){var i=mn(t,"image","cropAndResize"),s=mn(e,"boxes","cropAndResize","float32"),u=mn(n,"boxInd","cropAndResize","int32");o=o||"bilinear",a=a||0;var c=s.shape[0];return C(4===i.rank,(function(){return"Error in cropAndResize: image must be rank 4,but got rank "+i.rank+"."})),C(2===s.rank&&4===s.shape[1],(function(){return"Error in cropAndResize: boxes must be have size ["+c+",4] but had shape "+s.shape+"."})),C(1===u.rank&&u.shape[0]===c,(function(){return"Error in cropAndResize: boxInd must be have size ["+c+"] but had shape "+s.shape+"."})),C(2===r.length,(function(){return"Error in cropAndResize: cropSize must be of length 2, but got length "+r.length+"."})),C(r[0]>=1&&r[1]>=1,(function(){return"cropSize must be atleast [1,1], but was "+r})),C("bilinear"===o||"nearest"===o,(function(){return"method must be bilinear or nearest, but was "+o})),Lt.runKernelFunc((function(t,e){return t.cropAndResize(i,s,u,r,o,a)}),{images:i,boxes:s,boxInd:u},null,"CropAndResize",{method:o,extrapolationValue:a,cropSize:r})}}),Oh=Object.freeze({resizeBilinear:Sh,resizeNearestNeighbor:Ah,nonMaxSuppression:Dh,nonMaxSuppressionAsync:Th,nonMaxSuppressionWithScore:Nh,nonMaxSuppressionWithScoreAsync:Fh,cropAndResize:_h}),Mh=function(t,e){return!(t>0)||"linear"===e},Bh=function(t,e,n){if(null==n||"linear"===n)return t;if("relu"===n)return t.mul(e.step());throw new Error("Gradient for activation "+n+" has not been implemented yet.")},Ph=function(t,e){var n=e,r=Eo(t.shape,e.shape);return r.length>0&&(n=n.sum(r)),n.reshape(t.shape)},Lh=function(t,e,n){if("linear"===e)return t;if("relu"===e)return Bl(t);if("elu"===e)return _l(t);if("relu6"===e)return Pl(t);if("prelu"===e)return Ml(t,n);throw new Error("Unknown fused activation "+e+".")};var Wh=An({fusedMatMul_:function(t){var e,n=t.a,r=t.b,o=t.transposeA,a=void 0!==o&&o,i=t.transposeB,s=void 0!==i&&i,u=t.bias,c=t.activation,l=void 0===c?"linear":c,h=t.preluActivationWeights;if(!1===Mh(Lt.state.gradientDepth,l)){var f=el(n,r,a,s);return null!=u&&(f=rc(f,u)),Lh(f,l,h)}var d=mn(n,"a","fused matMul"),p=mn(r,"b","fused matMul");e=Nt(d,p),d=e[0],p=e[1];var v=a?d.shape[d.rank-2]:d.shape[d.rank-1],m=s?p.shape[p.rank-1]:p.shape[p.rank-2],g=a?d.shape[d.rank-1]:d.shape[d.rank-2],y=s?p.shape[p.rank-2]:p.shape[p.rank-1],x=d.shape.slice(0,-2),b=p.shape.slice(0,-2),w=k(x),E=k(b);C(d.rank>=2&&p.rank>=2&&d.rank===p.rank,(function(){return"Error in fused matMul: inputs must have the same rank of at least 2, got ranks "+d.rank+" and "+p.rank+"."})),C(S(x,b),(function(){return"Error in fused matMul: outer dimensions ("+x+") and ("+b+") of Tensors with shapes "+d.shape+" and "+p.shape+" must match."})),C(v===m,(function(){return"Error in fused matMul: inner shapes ("+v+") and ("+m+") of Tensors with shapes "+d.shape+" and "+p.shape+" and transposeA="+a+" and transposeB="+s+" must match."}));var R,I,A=d.shape.slice(0,-2).concat([g,y]),D=a?d.as3D(w,v,g):d.as3D(w,g,v),T=s?p.as3D(E,y,m):p.as3D(E,m,y);null!=u&&Ro(A,(R=Nt(R=mn(u,"bias","fused matMul"),d)[0]).shape),null!=h&&(I=mn(h,"prelu weights","fused matMul"));var N={a:D,b:T};null!=u&&(N.bias=R),null!=h&&(N.preluActivationWeights=I);var F=[D,T];return Lt.runKernelFunc((function(t,e){var n=t.fusedBatchMatMul({a:D,b:T,transposeA:a,transposeB:s,bias:R,activation:l,preluActivationWeights:I});return e([D,T,n]),n}),N,(function(t,e){var n=e[0],r=e[1],o=e[2],i=Bh(t,o,l),c={};return null!=u&&(c={bias:function(){return Ph(R,i)}}),a||s?!a&&s?Object.assign({a:function(){return i.matMul(r,!1,!1)},b:function(){return i.matMul(n,!0,!1)}},c):a&&!s?Object.assign({a:function(){return r.matMul(i,!1,!0)},b:function(){return n.matMul(i,!1,!1)}},c):Object.assign({a:function(){return r.matMul(i,!0,!0)},b:function(){return i.matMul(n,!0,!0)}},c):Object.assign({a:function(){return i.matMul(r,!1,!0)},b:function(){return n.matMul(i,!0,!1)}},c)}),"_FusedMatMul",{transposeA:a,transposeB:s,activation:l},F,[!0]).reshape(A)}}),Uh=An({fusedConv2d_:function(t){var e=t.x,n=t.filter,r=t.strides,o=t.pad,a=t.dataFormat,i=void 0===a?"NHWC":a,s=t.dilations,u=void 0===s?[1,1]:s,c=t.dimRoundingMode,l=t.bias,h=t.activation,f=void 0===h?"linear":h,d=t.preluActivationWeights;if(f=f||"linear",!1===Mh(Lt.state.gradientDepth,f)){var p=qc(e,n,r,o,i,u,c);return null!=l&&(p=rc(p,l)),Lh(p,f,d)}var v=mn(e,"x","conv2d"),m=mn(n,"filter","conv2d"),g=v,y=!1;3===v.rank&&(y=!0,g=v.as4D(1,v.shape[0],v.shape[1],v.shape[2])),C(4===g.rank,(function(){return"Error in fused conv2d: input must be rank 4, but got rank "+g.rank+"."})),C(4===m.rank,(function(){return"Error in fused conv2d: filter must be rank 4, but got rank "+m.rank+"."})),null!=c&&C(A(o),(function(){return"Error in fused conv2d: pad must be an integer when using, dimRoundingMode "+c+" but got pad "+o+"."})),C(g.shape[3]===m.shape[2],(function(){return"Error in conv2d: depth of input ("+g.shape[3]+") must match input depth for filter "+m.shape[2]+"."})),C(Mo(r,u),(function(){return"Error in conv2D: Either strides or dilations must be 1. Got strides "+r+" and dilations '"+u+"'"})),C("NHWC"===i,(function(){return"Error in conv2d: got dataFormat of "+i+" but only NHWC is currently supported."}));var x,b,w=So(g.shape,m.shape,r,u,o,c);null!=l&&(x=Nt(x=mn(l,"bias","fused conv2d"),v)[0],Ro(w.outShape,x.shape)),null!=d&&(b=mn(d,"prelu weights","fused conv2d"));var E={x:g,filter:m};null!=l&&(E.bias=x),null!=d&&(E.preluActivationWeights=b);var R=[m,g],I=Lt.runKernelFunc((function(t,e){var n=t.fusedConv2d({input:g,filter:m,convInfo:w,bias:x,activation:f,preluActivationWeights:b});return e([m,g,n]),n}),E,(function(t,e){var n=e,a=n[0],i=n[1],s=n[2],c=Bh(t,s,f);C(Oo(u),(function(){return"Error in gradient of fused conv2D: dilation rates greater than 1 are not yet supported in gradients. Got dilations '"+u+"'"}));var h={};return null!=l&&(h={bias:function(){return Ph(x,c)}}),Object.assign({x:function(){return Xc(i.shape,c,a,r,o)},filter:function(){return jc(i,c,a.shape,r,o)}},h)}),"FusedConv2D",{convInfo:w,activation:f},R,[!0]);return y?I.as3D(I.shape[1],I.shape[2],I.shape[3]):I}}),Vh=An({fusedDepthwiseConv2d_:function(t){var e=t.x,n=t.filter,r=t.strides,o=t.pad,a=t.dataFormat,i=void 0===a?"NHWC":a,s=t.dilations,u=void 0===s?[1,1]:s,c=t.dimRoundingMode,l=t.bias,h=t.activation,f=void 0===h?"linear":h,d=t.preluActivationWeights;if(!1===Mh(Lt.state.gradientDepth,f)){var p=Yc(e,n,r,o,i,u,c);return null!=l&&(p=rc(p,l)),Lh(p,f,d)}var v=mn(e,"x","depthwiseConv2d"),m=mn(n,"filter","depthwiseConv2d"),g=v,y=!1;3===v.rank&&(y=!0,g=v.as4D(1,v.shape[0],v.shape[1],v.shape[2])),C(4===g.rank,(function(){return"Error in fused depthwiseConv2d: input must be rank 4, but got rank "+g.rank+"."})),C(4===m.rank,(function(){return"Error in fused depthwiseConv2d: filter must be rank 4, but got rank "+m.rank+"."})),C(g.shape[3]===m.shape[2],(function(){return"Error in fused depthwiseConv2d: number of input channels ("+g.shape[3]+") must match the inChannels dimension in filter "+m.shape[2]+"."})),null==u&&(u=[1,1]),C(Mo(r,u),(function(){return"Error in fused depthwiseConv2d: Either strides or dilations must be 1. Got strides "+r+" and dilations '"+u+"'"})),null!=c&&C(A(o),(function(){return"Error in fused depthwiseConv2d: pad must be an integer when using dimRoundingMode "+c+" but got pad "+o+"."}));var x,b,w=So(g.shape,m.shape,r,u,o,c,!0);null!=l&&(x=Nt(x=mn(l,"bias","fused conv2d"),v)[0],Ro(w.outShape,x.shape)),null!=d&&(b=mn(d,"prelu weights","fused depthwiseConv2d"));var E={x:g,filter:m};null!=l&&(E.bias=x),null!=d&&(E.preluActivationWeights=b);var R=[m,g],I=Lt.runKernelFunc((function(t,e){var n=t.fusedDepthwiseConv2D({input:g,filter:m,convInfo:w,bias:x,activation:f,preluActivationWeights:b});return e([m,g,n]),n}),E,(function(t,e){C(Oo(u),(function(){return"Error in gradient of fused depthwiseConv2d: dilation rates greater than 1 are not yet supported. Got dilations '"+u+"'"}));var n=e[0],r=e[1],o=e[2],a=Bh(t,o,f),i={};return null!=l&&(i={bias:function(){return Ph(x,a)}}),Object.assign({x:function(){return $c(r.shape,a,n,w)},filter:function(){return Qc(r,a,n.shape,w)}},i)}),"FusedDepthwiseConv2D",{convInfo:w,activation:f},R,[!0]);return y?I.as3D(I.shape[1],I.shape[2],I.shape[3]):I}}),zh=Object.freeze({matMul:Wh,conv2d:Uh,depthwiseConv2d:Vh}),Gh=Object.freeze({image:Oh,linalg:Ih,losses:bh,spectral:Jl,fused:zh,signal:uh,square:tu,squaredDifference:nu,conv1d:Hc,conv2d:qc,conv3d:Kc,depthwiseConv2d:Yc,separableConv2d:Jc,conv2dTranspose:Zc,conv3dTranspose:tl,op:An,batchNormalization2d:Gu,batchNormalization3d:Hu,batchNormalization4d:qu,batchNormalization:Ku,batchNorm:ju,batchNorm2d:Xu,batchNorm3d:Yu,batchNorm4d:$u,booleanMaskAsync:Uc,complex:Dn,real:Tn,imag:Nn,concat:Yn,concat1d:$n,concat2d:Qn,concat3d:Jn,concat4d:Zn,split:tr,matMul:el,dot:nl,outerProduct:rl,reverse:ol,reverse1d:al,reverse2d:il,reverse3d:sl,reverse4d:ul,maxPool:hl,avgPool:fl,pool:dl,maxPool3d:pl,avgPool3d:vl,slice:ml,slice1d:gl,slice2d:yl,slice3d:xl,slice4d:bl,abs:ru,acos:ou,acosh:au,asin:iu,asinh:su,atan:uu,atanh:cu,ceil:lu,clipByValue:hu,cos:fu,cosh:du,erf:pu,exp:vu,expm1:mu,floor:gu,log:yu,log1p:xu,logSigmoid:bu,neg:wu,reciprocal:Cu,round:Eu,rsqrt:Ru,sigmoid:Iu,sign:ku,isNaN:Su,isInf:Au,isFinite:Du,sin:Tu,sinh:Nu,softplus:Fu,sqrt:_u,step:Ou,tan:Mu,tanh:Bu,all:Cl,any:El,argMax:Rl,argMin:Il,logSumExp:kl,max:Sl,mean:Al,min:Dl,moments:Tl,sum:Nl,prod:Fl,equal:Rc,equalStrict:Ic,greater:kc,greaterEqual:Sc,greaterEqualStrict:Ac,greaterStrict:Dc,less:Tc,lessEqual:Nc,lessEqualStrict:Fc,lessStrict:_c,notEqual:Oc,notEqualStrict:Mc,add:rc,addN:oc,addStrict:ac,atan2:ic,div:sc,divNoNan:uc,divStrict:cc,floorDiv:lc,maximum:hc,maximumStrict:fc,minimum:dc,minimumStrict:pc,mod:vc,modStrict:mc,mul:gc,mulStrict:yc,pow:xc,powStrict:bc,squaredDifferenceStrict:wc,sub:Cc,subStrict:Ec,elu:_l,leakyRelu:Ol,prelu:Ml,relu:Bl,relu6:Pl,selu:Ll,logicalAnd:Qu,logicalNot:Ju,logicalOr:Zu,logicalXor:tc,where:ec,whereAsync:nc,buffer:dr,print:pr,batchToSpaceND:vr,broadcastTo:mr,cast:gr,clone:yr,cumsum:xr,depthToSpace:br,expandDims:wr,eye:Cr,multinomial:Er,oneHot:Rr,pad:Ir,pad1d:kr,pad2d:Sr,pad3d:Ar,pad4d:Dr,rand:Tr,randomNormal:Nr,randomGamma:Fr,randomUniform:_r,reshape:Or,spaceToBatchND:Mr,squeeze:Br,stack:Pr,tile:Lr,truncatedNormal:Wr,unstack:Ur,setdiff1dAsync:Vr,fill:Hn,linspace:qn,ones:zn,range:Kn,scalar:On,tensor:Fn,tensor1d:Mn,tensor2d:Bn,tensor3d:Pn,tensor4d:Ln,tensor5d:Wn,tensor6d:Un,variable:Vn,zeros:Gn,onesLike:jn,zerosLike:Xn,transpose:Wl,softmax:go,logSoftmax:yo,localResponseNormalization:Ul,norm:Vl,gather:Lc,unsortedSegmentSum:Wc,basicLSTMCell:zl,multiRNNCell:Gl,movingAverage:Hl,stridedSlice:ql,topk:Kl,scatterND:jl,fft:Xl,ifft:Yl,rfft:$l,irfft:Ql,sparseToDense:Zl,gatherND:th,diag:eh,dropout:nh,hannWindow:oh,hammingWindow:ah,frame:ih,stft:sh,inTopKAsync:lh});function Hh(t,e){Array.isArray(t)||(t=[t]),t.forEach((function(t){null!=t&&C("complex64"!==t.dtype,(function(){return e+" does not support complex64 tensors."}))}))}function qh(t,e,n,r){if("linear"===n)return t.linear(e);if("relu"===n)return t.relu(e);if("elu"===n)return t.elu(e);if("relu6"===n)return t.relu6(e);if("prelu"===n)return t.prelu(e,r);throw new Error("Activation "+n+" has not been implemented for the CPU backend.")}var Kh=function(t){function o(){var e=t.call(this)||this;return e.blockSize=48,e.firstUse=!0,e.data=new xo(e,Lt),e}return e(o,t),o.prototype.write=function(t,e,n){this.firstUse&&(this.firstUse=!1,i().get("IS_NODE")&&dn("\n============================\nHi there 👋. Looks like you are running TensorFlow.js in Node.js. To speed things up dramatically, install our node backend, which binds to TensorFlow C++, by running npm i @tensorflow/tfjs-node, or npm i @tensorflow/tfjs-node-gpu if you have CUDA. Then call require('@tensorflow/tfjs-node'); (-gpu suffix for CUDA) at the start of your program. Visit https://github.com/tensorflow/tfjs-node for more details.\n============================"));var r={};return this.data.set(r,{values:t,dtype:n}),r},o.prototype.move=function(t,e,n,r){this.data.set(t,{values:e,dtype:r})},o.prototype.numDataIds=function(){return this.data.numDataIds()},o.prototype.read=function(t){return n(this,void 0,void 0,(function(){return r(this,(function(e){return[2,this.readSync(t)]}))}))},o.prototype.readSync=function(t){var e=this.data.get(t),n=e.dtype,r=e.complexTensors;return"complex64"===n?Vo(this.readSync(r.real.dataId),this.readSync(r.imag.dataId)):this.data.get(t).values},o.prototype.bufferSync=function(t){var e=this.readSync(t.dataId),n=e;if("string"===t.dtype)try{n=e.map((function(t){return ot(t)}))}catch(t){throw new Error("Failed to decode encoded string bytes into utf-8")}return dr(t.shape,t.dtype,n)},o.prototype.makeOutput=function(t,e,n){var r=this.write(t,e,n);return Lt.makeTensorFromDataId(r,e,n,this)},o.prototype.disposeData=function(t){if(this.data.has(t)){var e=this.data.get(t).complexTensors;null!=e&&(e.real.dispose(),e.imag.dispose()),this.data.delete(t)}},o.prototype.time=function(t){return n(this,void 0,void 0,(function(){var e;return r(this,(function(n){return e=et(),t(),[2,{kernelMs:et()-e}]}))}))},o.prototype.memory=function(){return{unreliable:!0,reasons:["The reported memory is an upper bound. Due to automatic garbage collection, the true allocated memory may be less."]}},o.prototype.complex=function(t,e){var n=this.makeOutput(null,t.shape,"complex64");return this.data.get(n.dataId).complexTensors={real:Lt.keep(t.clone()),imag:Lt.keep(e.clone())},n},o.prototype.real=function(t){return this.data.get(t.dataId).complexTensors.real.clone()},o.prototype.imag=function(t){return this.data.get(t.dataId).complexTensors.imag.clone()},o.prototype.slice=function(t,e,n){if(Hh(t,"slice"),io(t.shape,e,n)){var r=so(e,t.strides),o=k(n);return Fn(this.readSync(t.dataId).subarray(r,r+o),n,t.dtype)}for(var a=dr(n,t.dtype),i=this.bufferSync(t),s=0;s<a.size;++s){var u=a.indexToLoc(s).map((function(t,n){return t+e[n]}));a.values[s]=i.get.apply(i,u)}return a.toTensor()},o.prototype.stridedSlice=function(t,e,n,r){Hh(t,"stridedSlice");var o=ro(e,n,r);if(o.some((function(t){return 0===t})))return Fn([],o);for(var a=dr(o,t.dtype),i=this.bufferSync(t),s=0;s<a.size;s++){for(var u=a.indexToLoc(s),c=new Array(u.length),l=0;l<c.length;l++)c[l]=u[l]*r[l]+e[l];a.set.apply(a,[i.get.apply(i,c)].concat(u))}return a.toTensor()},o.prototype.diag=function(t){for(var e=this.readSync(t.dataId),n=dr([t.size,t.size],t.dtype),r=n.values,o=0;o<e.length;o++)r[o*t.size+o]=e[o];return n.toTensor()},o.prototype.unstack=function(t,e){for(var n=t.shape[e],r=new Array(t.rank-1),o=0,a=0;a<t.rank;a++)a!==e&&(r[o++]=t.shape[a]);var i=new Array(t.rank).fill(0),s=t.shape.slice();s[e]=1;var u=new Array(n);for(a=0;a<u.length;a++)i[e]=a,u[a]=this.slice(t,i,s).reshape(r);return u},o.prototype.reverse=function(t,e){Hh(t,"reverse");for(var n=dr(t.shape,t.dtype),r=this.bufferSync(t),o=function(o){var a=n.indexToLoc(o),i=a.slice();e.forEach((function(e){return i[e]=t.shape[e]-1-i[e]})),n.set.apply(n,[r.get.apply(r,i)].concat(a))},a=0;a<n.size;a++)o(a);return n.toTensor()},o.prototype.concat=function(t,e){var n=this;if("complex64"===t[0].dtype){var r=t.map((function(t){return Tn(t)})),o=t.map((function(t){return Nn(t)}));return Dn(this.concat(r,e),this.concat(o,e))}var a=t.map((function(t){var n=k(t.shape.slice(e));return t.as2D(-1,n)})),i=Sn(a.map((function(t){return t.shape})),1),s=dr(i,t[0].dtype).values;if(1===a[0].shape[0]){var u=0;a.forEach((function(t){s.set(n.readSync(t.dataId),u),u+=t.size}))}else{var c=0;a.forEach((function(t){for(var e=n.readSync(t.dataId),r=0,o=0;o<t.shape[0];++o)for(var a=o*i[1]+c,u=0;u<t.shape[1];++u)s[a+u]=e[r++];c+=t.shape[1]}))}var l=Sn(t.map((function(t){return t.shape})),e);return Fn(s,l,t[0].dtype)},o.prototype.neg=function(t){return Hh(t,"neg"),this.multiply(On(-1),t)},o.prototype.add=function(t,e){return"complex64"===t.dtype||"complex64"===e.dtype?this.broadcastedBinaryComplexOp(t.cast("complex64"),e.cast("complex64"),(function(t,e,n,r){return{real:t+n,imag:e+r}})):this.broadcastedBinaryOp(t,e,Dt(t.dtype,e.dtype),(function(t,e){return t+e}))},o.prototype.addN=function(t){var e=this;Hh(t,"addN");for(var n=t.map((function(t){return e.readSync(t.dataId)})),r=dr(t[0].shape,t[0].dtype),o=r.values,a=0;a<t.length;a++)for(var i=n[a],s=0;s<o.length;s++)o[s]+=i[s];return r.toTensor()},o.prototype.softmax=function(t,e){var n=O([e],t.shape),r=this.max(t,n),o=wn(r.shape,n),a=this.subtract(t,r.reshape(o)),i=this.exp(a),s=this.sum(i,n).reshape(o);return this.realDivide(i,s)},o.prototype.subtract=function(t,e){return"complex64"===t.dtype||"complex64"===e.dtype?this.broadcastedBinaryComplexOp(t.cast("complex64"),e.cast("complex64"),(function(t,e,n,r){return{real:t-n,imag:e-r}})):this.broadcastedBinaryOp(t,e,Dt(t.dtype,e.dtype),(function(t,e){return t-e}))},o.prototype.pow=function(t,e){return Hh([t,e],"pow"),this.broadcastedBinaryOp(t,e,t.dtype,(function(t,e){return Math.pow(t,e)}))},o.prototype.batchMatMul=function(t,e,n,r){Hh([t,e],"matMul");for(var o=n?t.shape[1]:t.shape[2],a=n?t.shape[2]:t.shape[1],i=r?e.shape[1]:e.shape[2],s=t.shape[0],u=this.readSync(t.dataId),c=this.readSync(e.dataId),l=n?[t.strides[0],1,t.strides[1]]:[t.strides[0],t.strides[1],1],h=l[0],f=l[1],d=l[2],p=r?[1,e.strides[1],e.strides[0]]:[e.strides[1],1,e.strides[0]],v=p[0],m=p[1],g=p[2],y=a*i,x=dr([s,a,i],t.dtype),b=x.values,w=this.blockSize,C=0;C<s;C++)for(var E=0;E<a;E+=w)for(var R=0;R<i;R+=w)for(var I=0;I<o;I+=w)for(var k=Math.min(E+w,a),S=Math.min(R+w,i),A=Math.min(I+w,o),D=E;D<k;D++)for(var T=R;T<S;T++){for(var N=0,F=I;F<A;F++)N+=u[C*h+D*f+F*d]*c[F*v+T*m+C*g];b[C*y+(D*i+T)]+=N}return x.toTensor()},o.prototype.fusedBatchMatMul=function(t){var e=t.a,n=t.b,r=t.transposeA,o=t.transposeB,a=t.bias,i=t.activation,s=t.preluActivationWeights,u=this.batchMatMul(e,n,r,o);return a&&(u=this.add(u,a)),i&&(u=qh(this,u,i,s)),u},o.prototype.multiply=function(t,e){return"complex64"===t.dtype||"complex64"===e.dtype?this.broadcastedBinaryComplexOp(t.cast("complex64"),e.cast("complex64"),(function(t,e,n,r){return{real:t*n-e*r,imag:t*r+e*n}})):this.broadcastedBinaryOp(t,e,Dt(t.dtype,e.dtype),(function(t,e){return t*e}))},o.prototype.realDivide=function(t,e){Hh([t,e],"realDivide");return this.broadcastedBinaryOp(t,e,"float32",(function(t,e){return t/e}))},o.prototype.floorDiv=function(t,e){Hh([t,e],"floorDiv");return this.broadcastedBinaryOp(t,e,"int32",(function(t,e){return Math.floor(t/e)}))},o.prototype.sum=function(t,e){Hh(t,"sum"),Cn("sum",e,t.rank);for(var n=bn(t.shape,e),r=n[0],o=n[1],a=Gn(r,Dt(t.dtype,"int32")),i=k(o),s=this.readSync(a.dataId),u=this.readSync(t.dataId),c=0;c<s.length;++c){for(var l=c*i,h=0,f=0;f<i;++f)h+=u[l+f];s[c]=h}return a},o.prototype.prod=function(t,e){Hh(t,"sum");for(var n=bn(t.shape,e),r=n[0],o=n[1],a=Gn(r,Dt(t.dtype,"int32")),i=k(o),s=this.readSync(a.dataId),u=this.readSync(t.dataId),c=0;c<s.length;++c){for(var l=c*i,h=1,f=0;f<i;++f)h*=u[l+f];s[c]=h}return a},o.prototype.unsortedSegmentSum=function(t,e,n){Hh(t,"unsortedSegmentSum");for(var r=[],o=t.rank-e.rank,a=0;a<o;++a)e=e.expandDims(a+1);for(a=0;a<n;++a){var i=On(a,"int32"),s=Rc(i,e).asType("float32").mul(t).sum(0);r.push(s)}return Pr(r)},o.prototype.argMin=function(t,e){Hh(t,"argMin");var n=[e];Cn("argMin",n,t.rank);for(var r=bn(t.shape,n),o=r[0],a=r[1],i=Gn(o,"int32"),s=k(a),u=this.readSync(i.dataId),c=this.readSync(t.dataId),l=0;l<u.length;++l){for(var h=l*s,f=c[h],d=0,p=0;p<s;++p){var v=c[h+p];v<f&&(f=v,d=p)}u[l]=d}return i},o.prototype.argMax=function(t,e){Hh(t,"argMax");var n=[e];Cn("argMax",n,t.rank);for(var r=bn(t.shape,n),o=r[0],a=r[1],i=Gn(o,"int32"),s=k(a),u=this.readSync(i.dataId),c=this.readSync(t.dataId),l=0;l<u.length;++l){for(var h=l*s,f=c[h],d=0,p=0;p<s;++p){var v=c[h+p];v>f&&(f=v,d=p)}u[l]=d}return i},o.prototype.cumsum=function(t,e,n,r){if(Hh(t,"cumsum"),e!==t.rank-1)throw new Error("backend.cumsum in CPU expects an inner-most axis="+(t.rank-1)+" but got axis="+e);for(var o=Dt(t.dtype,"int32"),a=Gn(t.shape,o),i=this.readSync(a.dataId),s=this.readSync(t.dataId),u=t.shape[t.rank-1],c=r?function(t,e){return t+u-e-1}:function(t,e){return t+e},l=0;l<s.length;l+=u)for(var h=0;h<u;h++){var f=c(l,h);if(0===h)i[f]=n?0:s[f];else{var d=c(l,h-1);i[f]=n?s[d]+i[d]:s[f]+i[d]}}return a},o.prototype.equal=function(t,e){return Hh([t,e],"equal"),this.broadcastedBinaryOp(t,e,"bool",(function(t,e){return t===e?1:0}))},o.prototype.notEqual=function(t,e){return Hh([t,e],"notEqual"),this.broadcastedBinaryOp(t,e,"bool",(function(t,e){return t!==e?1:0}))},o.prototype.less=function(t,e){return Hh([t,e],"less"),this.broadcastedBinaryOp(t,e,"bool",(function(t,e){return t<e?1:0}))},o.prototype.lessEqual=function(t,e){return Hh([t,e],"lessEqual"),this.broadcastedBinaryOp(t,e,"bool",(function(t,e){return t<=e?1:0}))},o.prototype.greater=function(t,e){return Hh([t,e],"greater"),this.broadcastedBinaryOp(t,e,"bool",(function(t,e){return t>e?1:0}))},o.prototype.greaterEqual=function(t,e){return Hh([t,e],"greaterEqual"),this.broadcastedBinaryOp(t,e,"bool",(function(t,e){return t>=e?1:0}))},o.prototype.logicalNot=function(t){Hh(t,"logicalNot");for(var e=this.readSync(t.dataId),n=new Uint8Array(e.length),r=0;r<e.length;++r)n[r]=e[r]?0:1;return this.makeOutput(n,t.shape,"bool")},o.prototype.logicalAnd=function(t,e){return Hh([t,e],"logicalAnd"),this.broadcastedBinaryOp(t,e,"bool",(function(t,e){return t&&e}))},o.prototype.logicalOr=function(t,e){return Hh([t,e],"logicalOr"),this.broadcastedBinaryOp(t,e,"bool",(function(t,e){return t||e}))},o.prototype.select=function(t,e,n){Hh([t,e,n],"select");for(var r=this.readSync(t.dataId),o=this.readSync(e.dataId),a=this.readSync(n.dataId),i=Gn(e.shape,Dt(e.dtype,n.dtype)),s=this.readSync(i.dataId),u=0,c=0===t.rank||t.rank>1||1===e.rank?1:k(e.shape.slice(1)),l=0;l<r.length;l++)for(var h=0;h<c;h++)1===r[l]?s[u++]=o[l]:s[u++]=a[l];return i},o.prototype.where=function(t){Hh([t],"where");var e=this.readSync(t.dataId);return na(t.shape,e)},o.prototype.topk=function(t,e,n){return Hh(t,"topk"),ea(this.readSync(t.dataId),t.shape,t.dtype,e)},o.prototype.min=function(t,e){Hh(t,"min"),Cn("min",e,t.rank);for(var n=bn(t.shape,e),r=n[0],o=n[1],a=Gn(r,t.dtype),i=k(o),s=this.readSync(a.dataId),u=this.readSync(t.dataId),c=0;c<s.length;++c){for(var l=c*i,h=u[l],f=0;f<i;++f){var d=u[l+f];d<h&&(h=d)}s[c]=h}return a},o.prototype.minimum=function(t,e){return Hh([t,e],"minimum"),this.broadcastedBinaryOp(t,e,t.dtype,(function(t,e){return Math.min(t,e)}))},o.prototype.mod=function(t,e){return Hh([t,e],"mod"),this.broadcastedBinaryOp(t,e,t.dtype,(function(t,e){var n=t%e;return t<0&&e<0||t>=0&&e>=0?n:(n+e)%e}))},o.prototype.max=function(t,e){Hh(t,"max"),Cn("max",e,t.rank);for(var n=bn(t.shape,e),r=n[0],o=n[1],a=Gn(r,t.dtype),i=k(o),s=this.readSync(a.dataId),u=this.readSync(t.dataId),c=0;c<s.length;++c){for(var l=c*i,h=u[l],f=0;f<i;++f){var d=u[l+f];d>h&&(h=d)}s[c]=h}return a},o.prototype.maximum=function(t,e){return Hh([t,e],"maximum"),this.broadcastedBinaryOp(t,e,t.dtype,(function(t,e){return Math.max(t,e)}))},o.prototype.all=function(t,e){Hh(t,"all"),Cn("all",e,t.rank);for(var n=bn(t.shape,e),r=n[0],o=n[1],a=Gn(r,t.dtype),i=k(o),s=this.readSync(a.dataId),u=this.readSync(t.dataId),c=0;c<s.length;++c){for(var l=c*i,h=u[l],f=0;f<i;++f){var d=u[l+f];h=h&&d}s[c]=h}return a},o.prototype.any=function(t,e){Hh(t,"any"),Cn("any",e,t.rank);for(var n=bn(t.shape,e),r=n[0],o=n[1],a=Gn(r,t.dtype),i=k(o),s=this.readSync(a.dataId),u=this.readSync(t.dataId),c=0;c<s.length;++c){for(var l=c*i,h=u[l],f=0;f<i;++f){var d=u[l+f];h=h||d}s[c]=h}return a},o.prototype.squaredDifference=function(t,e){return Hh([t,e],"squaredDifference"),this.broadcastedBinaryOp(t,e,t.dtype,(function(t,e){var n=t-e;return n*n}))},o.prototype.ceil=function(t){Hh(t,"ceil");for(var e=this.readSync(t.dataId),n=new Float32Array(e.length),r=0;r<e.length;++r)n[r]=Math.ceil(e[r]);return this.makeOutput(n,t.shape,"float32")},o.prototype.floor=function(t){Hh(t,"floor");for(var e=this.readSync(t.dataId),n=new Float32Array(e.length),r=0;r<e.length;++r)n[r]=Math.floor(e[r]);return this.makeOutput(n,t.shape,"float32")},o.prototype.sign=function(t){Hh(t,"x");for(var e=this.readSync(t.dataId),n=new Float32Array(e.length),r=0;r<e.length;++r)e[r]<0?n[r]=-1:e[r]>0?n[r]=1:n[r]=0;return this.makeOutput(n,t.shape,"float32")},o.prototype.isNaN=function(t){Hh(t,"x");for(var e=this.readSync(t.dataId),n=new Uint8Array(e.length),r=0;r<e.length;++r)Number.isNaN(e[r])&&(n[r]=1);return this.makeOutput(n,t.shape,"bool")},o.prototype.isInf=function(t){Hh(t,"x");for(var e=this.readSync(t.dataId),n=new Uint8Array(e.length),r=0;r<e.length;++r)Math.abs(e[r])===1/0&&(n[r]=1);return this.makeOutput(n,t.shape,"bool")},o.prototype.isFinite=function(t){Hh(t,"x");for(var e=this.readSync(t.dataId),n=new Uint8Array(e.length),r=0;r<e.length;++r)Number.isFinite(e[r])&&(n[r]=1);return this.makeOutput(n,t.shape,"bool")},o.prototype.round=function(t){Hh(t,"round");for(var e=this.readSync(t.dataId),n=new Float32Array(e.length),r=0;r<e.length;++r){var o=Math.floor(e[r]);e[r]-o<.5?n[r]=Math.floor(e[r]):e[r]-o>.5?n[r]=Math.ceil(e[r]):n[r]=o%2==0?o:o+1}return this.makeOutput(n,t.shape,"float32")},o.prototype.exp=function(t){Hh(t,"exp");for(var e=this.readSync(t.dataId),n=new Float32Array(e.length),r=0;r<e.length;++r)n[r]=Math.exp(e[r]);return this.makeOutput(n,t.shape,"float32")},o.prototype.expm1=function(t){Hh(t,"expm1");for(var e=this.readSync(t.dataId),n=new Float32Array(e.length),r=0;r<e.length;++r)n[r]=Math.expm1(e[r]);return this.makeOutput(n,t.shape,"float32")},o.prototype.log=function(t){Hh(t,"log");for(var e=this.readSync(t.dataId),n=new Float32Array(e.length),r=0;r<e.length;++r){var o=e[r];n[r]=Math.log(o)}return this.makeOutput(n,t.shape,"float32")},o.prototype.log1p=function(t){Hh(t,"log1p");for(var e=this.readSync(t.dataId),n=new Float32Array(e.length),r=0;r<e.length;++r){var o=e[r];n[r]=Math.log1p(o)}return this.makeOutput(n,t.shape,"float32")},o.prototype.sqrt=function(t){Hh(t,"sqrt");for(var e=this.readSync(t.dataId),n=new Float32Array(e.length),r=0;r<e.length;++r){var o=e[r];n[r]=Math.sqrt(o)}return this.makeOutput(n,t.shape,"float32")},o.prototype.rsqrt=function(t){Hh(t,"rsqrt");for(var e=this.readSync(t.dataId),n=new Float32Array(e.length),r=0;r<e.length;++r){var o=e[r];n[r]=1/Math.sqrt(o)}return this.makeOutput(n,t.shape,"float32")},o.prototype.reciprocal=function(t){Hh(t,"reciprocal");for(var e=this.readSync(t.dataId),n=new Float32Array(e.length),r=0;r<e.length;++r)n[r]=1/e[r];return this.makeOutput(n,t.shape,"float32")},o.prototype.linear=function(t){return t},o.prototype.relu=function(t){Hh(t,"relu");for(var e=Gn(t.shape,t.dtype),n=this.readSync(e.dataId),r=this.readSync(t.dataId),o=0;o<r.length;++o)n[o]=Math.max(0,r[o]);return e},o.prototype.relu6=function(t){Hh(t,"relu");for(var e=Gn(t.shape,t.dtype),n=this.readSync(e.dataId),r=this.readSync(t.dataId),o=0;o<r.length;++o)n[o]=Math.min(Math.max(0,r[o]),6);return e},o.prototype.prelu=function(t,e){return Hh([t,e],"prelu"),this.broadcastedBinaryOp(t,e,t.dtype,(function(t,e){return t<0?e*t:t}))},o.prototype.elu=function(t){Hh(t,"elu");for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r){var o=n[r];e[r]=o>=0?o:Math.exp(o)-1}return this.makeOutput(e,t.shape,"float32")},o.prototype.eluDer=function(t,e){Hh([t,e],"eluDer");for(var n=new Float32Array(e.size),r=this.readSync(e.dataId),o=this.readSync(t.dataId),a=0;a<r.length;++a){var i=r[a];n[a]=i>=1?o[a]:o[a]*(i+1)}return this.makeOutput(n,e.shape,"float32")},o.prototype.selu=function(t){Hh(t,"selu");for(var e=bs,n=ws,r=new Float32Array(t.size),o=this.readSync(t.dataId),a=0;a<o.length;++a){var i=o[a];r[a]=i>=0?n*i:e*(Math.exp(i)-1)}return this.makeOutput(r,t.shape,"float32")},o.prototype.clip=function(t,e,n){Hh(t,"clip");for(var r=new Float32Array(t.size),o=this.readSync(t.dataId),a=0;a<o.length;++a){var i=o[a];r[a]=i>n?n:i<e?e:i}return this.makeOutput(r,t.shape,"float32")},o.prototype.abs=function(t){for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r)e[r]=Math.abs(n[r]);return this.makeOutput(e,t.shape,"float32")},o.prototype.complexAbs=function(t){for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<t.size;++r){var o=n[2*r],a=n[2*r+1];e[r]=Math.hypot(o,a)}return this.makeOutput(e,t.shape,"float32")},o.prototype.int=function(t){Hh(t,"int");for(var e=new Int32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r)e[r]=n[r];return this.makeOutput(e,t.shape,"int32")},o.prototype.sigmoid=function(t){Hh(t,"sigmoid");for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r)e[r]=1/(1+Math.exp(-n[r]));return this.makeOutput(e,t.shape,"float32")},o.prototype.softplus=function(t){Hh(t,"softplus");for(var e=Math.log(1.1920928955078125e-7)+2,n=new Float32Array(t.size),r=this.readSync(t.dataId),o=0;o<r.length;++o){var a=r[o]>-e,i=r[o]<e,s=Math.exp(r[o]),u=void 0;u=i?s:a?r[o]:Math.log(1+s),n[o]=u}return this.makeOutput(n,t.shape,"float32")},o.prototype.sin=function(t){Hh(t,"sin");for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r)e[r]=Math.sin(n[r]);return this.makeOutput(e,t.shape,"float32")},o.prototype.cos=function(t){Hh(t,"cos");for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r)e[r]=Math.cos(n[r]);return this.makeOutput(e,t.shape,"float32")},o.prototype.tan=function(t){Hh(t,"tan");for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r)e[r]=Math.tan(n[r]);return this.makeOutput(e,t.shape,"float32")},o.prototype.asin=function(t){Hh(t,"asin");for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r)e[r]=Math.asin(n[r]);return this.makeOutput(e,t.shape,"float32")},o.prototype.acos=function(t){Hh(t,"acos");for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r)e[r]=Math.acos(n[r]);return this.makeOutput(e,t.shape,"float32")},o.prototype.atan=function(t){Hh(t,"atan");for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r)e[r]=Math.atan(n[r]);return this.makeOutput(e,t.shape,"float32")},o.prototype.atan2=function(t,e){return Hh([t,e],"atan2"),this.broadcastedBinaryOp(t,e,t.dtype,(function(t,e){return Math.atan2(t,e)}))},o.prototype.sinh=function(t){Hh(t,"sinh");for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r)e[r]=Math.sinh(n[r]);return this.makeOutput(e,t.shape,"float32")},o.prototype.cosh=function(t){Hh(t,"cosh");for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r)e[r]=Math.cosh(n[r]);return this.makeOutput(e,t.shape,"float32")},o.prototype.tanh=function(t){Hh(t,"tanh");for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r)e[r]=D(n[r]);return this.makeOutput(e,t.shape,"float32")},o.prototype.asinh=function(t){Hh(t,"asinh");for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r)e[r]=Math.asinh(n[r]);return this.makeOutput(e,t.shape,"float32")},o.prototype.acosh=function(t){Hh(t,"acosh");for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r)e[r]=Math.acosh(n[r]);return this.makeOutput(e,t.shape,"float32")},o.prototype.atanh=function(t){Hh(t,"atanh");for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r)e[r]=Math.atanh(n[r]);return this.makeOutput(e,t.shape,"float32")},o.prototype.erf=function(t){Hh(t,"erf");for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r){var o=Math.sign(n[r]),a=Math.abs(n[r]),i=1/(1+.3275911*a);e[r]=o*(1-((((1.061405429*i-1.453152027)*i+1.421413741)*i-.284496736)*i+.254829592)*i*Math.exp(-a*a))}return this.makeOutput(e,t.shape,"float32")},o.prototype.step=function(t,e){void 0===e&&(e=0),Hh(t,"step");for(var n=new Float32Array(t.size),r=this.readSync(t.dataId),o=0;o<r.length;++o){var a=r[o];isNaN(a)?n[o]=NaN:n[o]=a>0?1:e}return this.makeOutput(n,t.shape,"float32")},o.prototype.fusedConv2d=function(t){var e=t.input,n=t.filter,r=t.convInfo,o=t.bias,a=t.activation,i=t.preluActivationWeights,s=this.conv2d(e,n,r);return o&&(s=this.add(s,o)),a&&(s=qh(this,s,a,i)),s},o.prototype.conv2d=function(t,e,n){Hh([t,e],"conv2d");for(var r=n.filterHeight,o=n.filterWidth,a=n.dilationHeight,i=n.dilationWidth,s=n.padInfo.left,u=n.padInfo.top,c="channelsLast"===n.dataFormat,l=dr(n.outShape,t.dtype),h=t.strides[0],f=c?t.strides[1]:t.strides[2],d=c?t.strides[2]:1,p=c?1:t.strides[1],v=l.strides[0],m=c?l.strides[1]:l.strides[2],g=c?l.strides[2]:1,y=c?1:l.strides[1],x=this.readSync(t.dataId),b=this.readSync(e.dataId),w=l.values,C=0;C<n.batchSize;++C)for(var E=C*h,R=C*v,I=0;I<n.outHeight;++I)for(var k=R+I*m,S=I*n.strideHeight-u,A=0;A<r;A++){var D=S+A*a;if(!(D<0||D>=n.inHeight))for(var T=A*e.strides[0],N=E+D*f,F=0;F<n.outWidth;++F)for(var _=k+F*g,O=F*n.strideWidth-s,M=0;M<o;M++){var B=O+M*i;if(!(B<0||B>=n.inWidth))for(var P=N+B*d,L=T+M*e.strides[1],W=0;W<n.inChannels;++W){for(var U=x[P+W*p],V=0;V<n.outChannels;++V)w[_+V*y]+=U*b[L+V];L+=n.outChannels}}}return l.toTensor()},o.prototype.conv3d=function(t,e,n){for(var r=n.filterDepth,o=n.filterHeight,a=n.filterWidth,i=n.dilationDepth,s=n.dilationHeight,u=n.dilationWidth,c=n.padInfo.front,l=n.padInfo.left,h=n.padInfo.top,f=dr(n.outShape,t.dtype),d=this.readSync(t.dataId),p=this.readSync(e.dataId),v=f.values,m=0;m<n.batchSize;++m)for(var g=m*t.strides[0],y=m*f.strides[0],x=0;x<n.outDepth;++x)for(var b=y+x*f.strides[1],w=x*n.strideDepth-c,C=0;C<r;C++){var E=w+C*i;if(!(E<0||E>=n.inDepth))for(var R=C*e.strides[0],I=g+E*t.strides[1],k=0;k<n.outHeight;++k)for(var S=b+k*f.strides[2],A=k*n.strideHeight-h,D=0;D<o;D++){var T=A+D*s;if(!(T<0||T>=n.inHeight))for(var N=R+D*e.strides[1],F=I+T*t.strides[2],_=0;_<n.outWidth;++_)for(var O=S+_*n.outChannels,M=_*n.strideWidth-l,B=0;B<a;B++){var P=M+B*u;if(!(P<0||P>=n.inWidth))for(var L=N+B*e.strides[2],W=F+P*n.inChannels,U=L,V=0;V<n.inChannels;++V){for(var z=d[W+V],G=0;G<n.outChannels;++G)v[O+G]+=z*p[U+G];U+=n.outChannels}}}}return f.toTensor()},o.prototype.conv2dDerInput=function(t,e,n){Hh([t,e],"conv2dDerInput");for(var r=dr(n.inShape,"float32"),o=r.values,a=this.readSync(t.dataId),i=this.readSync(e.dataId),s=e.strides,u=s[0],c=s[1],l=s[2],h=n.batchSize,f=n.filterHeight,d=n.filterWidth,p=n.inChannels,v=n.inHeight,m=n.inWidth,g=n.outChannels,y=n.outHeight,x=n.outWidth,b=n.strideHeight,w=n.strideWidth,C=n.dataFormat,E=f-1-n.padInfo.top,R=d-1-n.padInfo.left,I="channelsLast"===C,k=r.strides[0],S=I?r.strides[1]:r.strides[2],A=I?r.strides[2]:1,D=I?1:r.strides[1],T=t.strides[0],N=I?t.strides[1]:t.strides[2],F=I?t.strides[2]:1,_=I?1:t.strides[1],O=0;O<h;++O)for(var M=0;M<p;++M)for(var B=0;B<v;++B)for(var P=B-E,L=Math.max(0,Math.ceil(P/b)),W=Math.min(y,(f+P)/b),U=0;U<m;++U){for(var V=U-R,z=Math.max(0,Math.ceil(V/w)),G=Math.min(x,(d+V)/w),H=0,q=L;q<W;++q)for(var K=q*b-P,j=z;j<G;++j)for(var X=T*O+N*q+F*j,Y=u*(f-1-K)+c*(d-1-(j*w-V))+l*M,$=0;$<g;++$){H+=a[X+_*$]*i[Y+$]}o[k*O+S*B+A*U+D*M]=H}return r.toTensor()},o.prototype.conv3dDerInput=function(t,e,n){for(var r=dr(n.inShape,"float32"),o=r.values,a=r.strides,i=a[0],s=a[1],u=a[2],c=a[3],l=this.readSync(t.dataId),h=t.strides,f=h[0],d=h[1],p=h[2],v=h[3],m=this.readSync(e.dataId),g=e.strides,y=g[0],x=g[1],b=g[2],w=g[3],C=n.batchSize,E=n.filterDepth,R=n.filterHeight,I=n.filterWidth,k=n.inChannels,S=n.inDepth,A=n.inHeight,D=n.inWidth,T=n.outChannels,N=n.outDepth,F=n.outHeight,_=n.outWidth,O=n.strideDepth,M=n.strideHeight,B=n.strideWidth,P=E-1-n.padInfo.front,L=R-1-n.padInfo.top,W=I-1-n.padInfo.left,U=0;U<C;++U)for(var V=0;V<k;++V)for(var z=0;z<S;++z)for(var G=z-P,H=Math.max(0,Math.ceil(G/O)),q=Math.min(N,(E+G)/O),K=0;K<A;++K)for(var j=K-L,X=Math.max(0,Math.ceil(j/M)),Y=Math.min(F,(R+j)/M),$=0;$<D;++$){for(var Q=$-W,J=Math.max(0,Math.ceil(Q/B)),Z=Math.min(_,(I+Q)/B),tt=0,et=H;et<q;++et)for(var nt=et*O-G,rt=X;rt<Y;++rt)for(var ot=rt*M-j,at=J;at<Z;++at)for(var it=f*U+d*et+p*rt+v*at,st=y*(E-1-nt)+x*(R-1-ot)+b*(I-1-(at*B-Q))+w*V,ut=0;ut<T;++ut){tt+=l[it+ut]*m[st+ut]}o[i*U+s*z+u*K+c*$+V]=tt}return r.toTensor()},o.prototype.conv2dDerFilter=function(t,e,n){Hh([t,e],"conv2dDerFilter");for(var r=n.strideHeight,o=n.strideWidth,a=n.filterHeight,i=n.filterWidth,s="channelsLast"===n.dataFormat,u=dr(n.filterShape,"float32"),c=n.padInfo.left,l=n.padInfo.top,h=this.bufferSync(t),f=this.bufferSync(e),d=0;d<a;++d)for(var p=Math.max(0,Math.ceil((l-d)/r)),v=Math.min(n.outHeight,(n.inHeight+l-d)/r),m=0;m<i;++m)for(var g=Math.max(0,Math.ceil((c-m)/o)),y=Math.min(n.outWidth,(n.inWidth+c-m)/o),x=0;x<n.inChannels;++x)for(var b=0;b<n.outChannels;++b){for(var w=0,C=0;C<n.batchSize;++C)for(var E=p;E<v;++E)for(var R=d+E*r-l,I=g;I<y;++I){var k=m+I*o-c;w+=s?h.get(C,R,k,x)*f.get(C,E,I,b):h.get(C,x,R,k)*f.get(C,b,E,I)}u.set(w,d,m,x,b)}return u.toTensor()},o.prototype.conv3dDerFilter=function(t,e,n){for(var r=n.strideDepth,o=n.strideHeight,a=n.strideWidth,i=n.filterDepth,s=n.filterHeight,u=n.filterWidth,c=dr(n.filterShape,"float32"),l=c.values,h=c.strides,f=h[0],d=h[1],p=h[2],v=h[3],m=this.readSync(e.dataId),g=e.strides,y=g[0],x=g[1],b=g[2],w=g[3],C=this.readSync(t.dataId),E=t.strides,R=E[0],I=E[1],k=E[2],S=E[3],A=n.padInfo.front,D=n.padInfo.left,T=n.padInfo.top,N=0;N<i;++N)for(var F=Math.max(0,Math.ceil((A-N)/r)),_=Math.min(n.outDepth,(n.inDepth+A-N)/r),O=N*f,M=0;M<s;++M)for(var B=Math.max(0,Math.ceil((T-M)/o)),P=Math.min(n.outHeight,(n.inHeight+T-M)/o),L=M*d+O,W=0;W<u;++W)for(var U=Math.max(0,Math.ceil((D-W)/a)),V=Math.min(n.outWidth,(n.inWidth+D-W)/a),z=W*p+L,G=0;G<n.inChannels;++G)for(var H=G*v+z,q=0;q<n.outChannels;++q){for(var K=0,j=0;j<n.batchSize;++j)for(var X=j*R,Y=j*y,$=F;$<_;++$)for(var Q=(N+$*r-A)*I+X,J=$*x+Y,Z=B;Z<P;++Z)for(var tt=(M+Z*o-T)*k+Q,et=Z*b+J,nt=U;nt<V;++nt){var rt=nt*w+et;K+=C[(W+nt*a-D)*S+tt+G]*m[rt+q]}l[H+q]=K}return c.toTensor()},o.prototype.fusedDepthwiseConv2D=function(t){var e=t.input,n=t.filter,r=t.convInfo,o=t.bias,a=t.activation,i=t.preluActivationWeights,s=this.depthwiseConv2D(e,n,r);return o&&(s=this.add(s,o)),a&&(s=qh(this,s,a,i)),s},o.prototype.depthwiseConv2D=function(t,e,n){Hh([t,e],"depthwiseConv2D");for(var r=n.filterHeight,o=n.filterWidth,a=n.dilationHeight,i=n.dilationWidth,s=n.padInfo.left,u=n.padInfo.top,c=n.outChannels/n.inChannels,l=dr(n.outShape,t.dtype),h=this.readSync(t.dataId),f=this.readSync(e.dataId),d=l.values,p=0;p<n.batchSize;++p)for(var v=p*t.strides[0],m=p*l.strides[0],g=0;g<n.outHeight;++g)for(var y=m+g*l.strides[1],x=g*n.strideHeight-s,b=0;b<r;++b){var w=x+b*a;if(!(w<0||w>=n.inHeight))for(var C=b*e.strides[0],E=v+w*t.strides[1],R=0;R<n.outWidth;++R)for(var I=y+R*l.strides[2],k=R*n.strideWidth-u,S=0;S<o;++S){var A=k+S*i;if(!(A<0||A>=n.inWidth))for(var D=C+S*e.strides[1],T=E+A*n.inChannels,N=I,F=D,_=0;_<n.inChannels;++_){for(var O=h[T+_],M=0;M<c;++M)d[N+M]+=O*f[F+M];N+=c,F+=c}}}return l.toTensor()},o.prototype.depthwiseConv2DDerInput=function(t,e,n){Hh([t,e],"depthwiseConv2DDerInput");for(var r=dr(n.inShape,"float32"),o=r.values,a=r.strides,i=a[0],s=a[1],u=a[2],c=this.readSync(t.dataId),l=t.strides,h=l[0],f=l[1],d=l[2],p=this.readSync(e.dataId),v=e.strides,m=v[0],g=v[1],y=v[2],x=n.batchSize,b=n.filterHeight,w=n.filterWidth,C=n.inChannels,E=n.inHeight,R=n.inWidth,I=n.outChannels,k=n.outHeight,S=n.outWidth,A=n.strideHeight,D=n.strideWidth,T=b-1-n.padInfo.top,N=w-1-n.padInfo.left,F=I/C,_=0;_<x;++_)for(var O=0;O<C;++O)for(var M=0;M<E;++M)for(var B=M-T,P=Math.max(0,Math.ceil(B/A)),L=Math.min(k,(b+B)/A),W=0;W<R;++W){for(var U=W-N,V=Math.max(0,Math.ceil(U/D)),z=Math.min(S,(w+U)/D),G=0,H=P;H<L;++H)for(var q=H*A-B,K=V;K<z;++K)for(var j=h*_+f*H+d*K,X=m*(b-1-q)+g*(w-1-(K*D-U))+y*O,Y=0;Y<F;++Y){G+=c[j+(O*F+Y)]*p[X+Y]}o[i*_+s*M+u*W+O]=G}return r.toTensor()},o.prototype.depthwiseConv2DDerFilter=function(t,e,n){Hh([t,e],"depthwiseConv2DDerFilter");for(var r=n.strideHeight,o=n.strideWidth,a=n.filterHeight,i=n.filterWidth,s=dr(n.filterShape,"float32"),u=n.padInfo.left,c=n.padInfo.top,l=n.outChannels/n.inChannels,h=this.bufferSync(t),f=this.bufferSync(e),d=0;d<a;++d)for(var p=Math.max(0,Math.ceil((c-d)/r)),v=Math.min(n.outHeight,(n.inHeight+c-d)/r),m=0;m<i;++m)for(var g=Math.max(0,Math.ceil((u-m)/o)),y=Math.min(n.outWidth,(n.inWidth+u-m)/o),x=0;x<n.outChannels;++x){for(var b=Math.trunc(x/l),w=x%l,C=0,E=0;E<n.batchSize;++E)for(var R=p;R<v;++R)for(var I=d+R*r-c,k=g;k<y;++k){var S=m+k*o-u;C+=h.get(E,I,S,b)*f.get(E,R,k,x)}s.set(C,d,m,b,w)}return s.toTensor()},o.prototype.tile=function(t,e){return Hh(t,"tile"),ta(this.bufferSync(t),e)},o.prototype.pad=function(t,e,n){Hh(t,"pad");var r=e.map((function(e,n){return e[0]+t.shape[n]+e[1]})),o=e.map((function(t){return t[0]})),a=this.bufferSync(t),i=dr(r,t.dtype);0!==n&&i.values.fill(n);for(var s=0;s<t.size;s++){var u=a.indexToLoc(s),c=u.map((function(t,e){return t+o[e]}));i.set.apply(i,[a.get.apply(a,u)].concat(c))}return i.toTensor()},o.prototype.transpose=function(t,e){Hh(t,"transpose");for(var n=new Array(t.rank),r=0;r<n.length;r++)n[r]=t.shape[e[r]];var o=this.readSync(t.dataId),a=dr(n,t.dtype),i=this.bufferSync(t);for(r=0;r<t.size;++r){for(var s=i.indexToLoc(r),u=new Array(s.length),c=0;c<u.length;c++)u[c]=s[e[c]];var l=a.locToIndex(u);a.values[l]=o[r]}return a.toTensor()},o.prototype.gather=function(t,e,n){Hh([t,e],"gather");var r=t.shape.slice(),o=this.readSync(e.dataId);r[n]=o.length;for(var a=dr(r,t.dtype),i=this.bufferSync(t),s=0;s<a.size;++s){var u=a.indexToLoc(s),c=u.slice();c[n]=o[u[n]];var l=i.locToIndex(c);a.values[s]=i.values[l]}return a.toTensor()},o.prototype.batchToSpaceND=function(t,e,n){Hh([t],"batchToSpaceND");var r=e.reduce((function(t,e){return t*e})),o=zr(t.shape,e,r),a=Gr(o.length,e.length),i=Hr(t.shape,e,r),s=qr(n,e.length),u=Kr(i,n,e.length);return t.reshape(o).transpose(a).reshape(i).slice(s,u)},o.prototype.spaceToBatchND=function(t,e,n){Hh([t],"spaceToBatchND");var r=e.reduce((function(t,e){return t*e})),o=[[0,0]];o.push.apply(o,n);for(var a=1+e.length;a<t.shape.length;++a)o.push([0,0]);var i=t.pad(o),s=zr(i.shape,e,r,!1),u=Gr(s.length,e.length,!1),c=Hr(i.shape,e,r,!1);return i.reshape(s).transpose(u).reshape(c)},o.prototype.pool=function(t,e,n){Hh(t,"pool");for(var r=e.strideHeight,o=e.strideWidth,a=e.dilationHeight,i=e.dilationWidth,s=e.effectiveFilterHeight,u=e.effectiveFilterWidth,c=e.padInfo.top,l=e.padInfo.left,h="max"===n?Number.NEGATIVE_INFINITY:Number.POSITIVE_INFINITY,f=this.readSync(t.dataId),d=dr(e.outShape,t.dtype),p=d.values,v=e.outShape[1]*e.outShape[2]*e.outShape[3],m=e.outShape[2]*e.outShape[3],g=e.outShape[3],y=0;y<e.batchSize;++y)for(var x=y*v,b=y*t.strides[0],w=0;w<e.inChannels;++w)for(var C=0;C<e.outHeight;++C)for(var E=C*r-c,R=Math.max(0,E),I=Math.min(e.inHeight,s+E),k=x+C*m,S=0;S<e.outWidth;++S){for(var A=S*o-l,D=Math.max(0,A),T=Math.min(e.inWidth,u+A),N=h,F=0,_=0,O=R;O<I;O+=a){for(var M=b+O*t.strides[1],B=D;B<T;B+=i){var P=f[M+B*t.strides[2]+w];"max"===n&&P>N?N=P:"avg"===n&&(F+=P,_++)}if(isNaN(N))break}p[k+S*g+w]="avg"===n?F/_:N}return d.toTensor()},o.prototype.maxPool=function(t,e){return this.pool(t,e,"max")},o.prototype.maxPoolPositions=function(t,e){for(var n=dr(e.outShape,"int32"),r=e.strideHeight,o=e.strideWidth,a=e.dilationHeight,i=e.dilationWidth,s=e.effectiveFilterHeight,u=e.effectiveFilterWidth,c=e.padInfo.top,l=e.padInfo.left,h=this.bufferSync(t),f=0;f<e.batchSize;++f)for(var d=0;d<e.inChannels;++d)for(var p=0;p<e.outHeight;++p){for(var v=p*r-c,m=v;m<0;)m+=a;for(var g=Math.min(e.inHeight,s+v),y=0;y<e.outWidth;++y){for(var x=y*o-l,b=x;b<0;)b+=i;for(var w=Math.min(e.inWidth,u+x),C=Number.NEGATIVE_INFINITY,E=-1,R=m;R<g;R+=a)for(var I=R-v,k=b;k<w;k+=i){var S=k-x,A=h.get(f,R,k,d);A>C&&(C=A,E=I*u+S)}n.set(E,f,p,y,d)}}return n.toTensor()},o.prototype.maxPoolBackprop=function(t,e,n,r){Hh([e,n],"maxPoolBackprop");for(var o=this.maxPoolPositions(e,r),a=r.strideHeight,i=r.strideWidth,s=r.dilationHeight,u=r.dilationWidth,c=r.effectiveFilterHeight,l=r.effectiveFilterWidth,h=l-1-r.padInfo.left,f=c-1-r.padInfo.top,d=dr(e.shape,"float32"),p=this.bufferSync(o),v=this.bufferSync(t),m=0;m<r.batchSize;++m)for(var g=0;g<r.inChannels;++g)for(var y=0;y<r.inHeight;++y)for(var x=0;x<r.inWidth;++x){for(var b=y-f,w=x-h,C=0,E=0;E<c;E+=s){var R=(b+E)/a;if(!(R<0||R>=r.outHeight||Math.floor(R)!==R))for(var I=0;I<l;I+=u){var k=(w+I)/i;if(!(k<0||k>=r.outWidth||Math.floor(k)!==k)){var S=c*l-1-p.get(m,R,k,g)===E*l+I?1:0;if(0!==S)C+=v.get(m,R,k,g)*S}}}d.set(C,m,y,x,g)}return d.toTensor()},o.prototype.avgPoolBackprop=function(t,e,n){Hh([t,e],"avgPoolBackprop");for(var r=n.strideHeight,o=n.strideWidth,a=n.filterHeight,i=n.filterWidth,s=n.dilationHeight,u=n.dilationWidth,c=n.effectiveFilterHeight,l=n.effectiveFilterWidth,h=l-1-n.padInfo.left,f=c-1-n.padInfo.top,d=dr(e.shape,"float32"),p=1/(a*i),v=this.bufferSync(t),m=0;m<n.batchSize;++m)for(var g=0;g<n.inChannels;++g)for(var y=0;y<n.inHeight;++y)for(var x=0;x<n.inWidth;++x){for(var b=y-f,w=x-h,C=0,E=0;E<c;E+=s){var R=(b+E)/r;if(!(R<0||R>=n.outHeight||Math.floor(R)!==R))for(var I=0;I<l;I+=u){var k=(w+I)/o;if(!(k<0||k>=n.outWidth||Math.floor(k)!==k))C+=v.get(m,R,k,g)}}d.set(C*p,m,y,x,g)}return d.toTensor()},o.prototype.pool3d=function(t,e,n){Hh(t,"pool3d");for(var r=e.strideDepth,o=e.strideHeight,a=e.strideWidth,i=e.dilationDepth,s=e.dilationHeight,u=e.dilationWidth,c=e.effectiveFilterDepth,l=e.effectiveFilterHeight,h=e.effectiveFilterWidth,f=e.padInfo.front,d=e.padInfo.top,p=e.padInfo.left,v="max"===n?Number.NEGATIVE_INFINITY:Number.POSITIVE_INFINITY,m=this.readSync(t.dataId),g=dr(e.outShape,t.dtype),y=g.values,x=e.outShape[1]*e.outShape[2]*e.outShape[3]*e.outShape[4],b=e.outShape[2]*e.outShape[3]*e.outShape[4],w=e.outShape[3]*e.outShape[4],C=e.outShape[4],E=0;E<e.batchSize;++E)for(var R=E*x,I=E*t.strides[0],k=0;k<e.inChannels;++k)for(var S=0;S<e.outDepth;++S){for(var A=S*r-f,D=A;D<0;)D+=i;for(var T=Math.min(e.inDepth,c+A),N=R+S*b,F=0;F<e.outHeight;++F){for(var _=F*o-d,O=_;O<0;)O+=s;for(var M=Math.min(e.inHeight,l+_),B=N+F*w,P=0;P<e.outWidth;++P){for(var L=P*a-p,W=L;W<0;)W+=u;for(var U=Math.min(e.inWidth,h+L),V=B+P*C,z=v,G=0,H=0,q=D;q<T;q+=i){for(var K=I+q*t.strides[1],j=O;j<M;j+=s){for(var X=K+j*t.strides[2],Y=W;Y<U;Y+=u){var $=m[X+Y*t.strides[3]+k];if("max"===n&&$>z?z=$:"avg"===n&&(G+=$,H++),isNaN(z))break}if(isNaN(z))break}if(isNaN(z))break}y[V+k]="avg"===n?G/H:z}}}return g.toTensor()},o.prototype.avgPool3d=function(t,e){return Hh(t,"avgPool3d"),this.pool3d(t,e,"avg").toFloat()},o.prototype.avgPool3dBackprop=function(t,e,n){Hh([t,e],"avgPool3dBackprop");for(var r=n.strideDepth,o=n.strideHeight,a=n.strideWidth,i=n.filterDepth,s=n.filterHeight,u=n.filterWidth,c=n.dilationDepth,l=n.dilationHeight,h=n.dilationWidth,f=n.effectiveFilterDepth,d=n.effectiveFilterHeight,p=n.effectiveFilterWidth,v=f-1-n.padInfo.front,m=p-1-n.padInfo.left,g=d-1-n.padInfo.top,y=dr(e.shape,"float32"),x=1/(i*s*u),b=this.bufferSync(t),w=0;w<n.batchSize;++w)for(var C=0;C<n.inChannels;++C)for(var E=0;E<n.inDepth;++E)for(var R=0;R<n.inHeight;++R)for(var I=0;I<n.inWidth;++I){for(var k=E-v,S=R-g,A=I-m,D=0,T=0;T<f;T+=c){var N=(k+T)/r;if(!(N<0||N>=n.outDepth||Math.floor(N)!==N))for(var F=0;F<d;F+=l){var _=(S+F)/o;if(!(_<0||_>=n.outHeight||Math.floor(_)!==_))for(var O=0;O<p;O+=h){var M=(A+O)/a;if(!(M<0||M>=n.outWidth||Math.floor(M)!==M))D+=b.get(w,N,_,M,C)}}}y.set(D*x,w,E,R,I,C)}return y.toTensor()},o.prototype.maxPool3d=function(t,e){return Hh(t,"maxPool3d"),this.pool3d(t,e,"max").toFloat()},o.prototype.maxPool3dPositions=function(t,e){for(var n=dr(e.outShape,"int32"),r=e.strideDepth,o=e.strideHeight,a=e.strideWidth,i=e.dilationDepth,s=e.dilationHeight,u=e.dilationWidth,c=e.effectiveFilterDepth,l=e.effectiveFilterHeight,h=e.effectiveFilterWidth,f=e.padInfo.front,d=e.padInfo.top,p=e.padInfo.left,v=this.bufferSync(t),m=0;m<e.batchSize;++m)for(var g=0;g<e.inChannels;++g)for(var y=0;y<e.outDepth;++y){for(var x=y*r-f,b=x;b<0;)b+=i;for(var w=Math.min(e.inDepth,c+x),C=0;C<e.outHeight;++C){for(var E=C*o-d,R=E;R<0;)R+=s;for(var I=Math.min(e.inHeight,l+E),k=0;k<e.outWidth;++k){for(var S=k*a-p,A=S;A<0;)A+=u;for(var D=Math.min(e.inWidth,h+S),T=Number.NEGATIVE_INFINITY,N=-1,F=b;F<w;F+=i)for(var _=F-x,O=R;O<I;O+=s)for(var M=O-E,B=A;B<D;B+=u){var P=B-S,L=v.get(m,F,O,B,g);L>=T&&(T=L,N=_*l*h+M*l+P)}n.set(N,m,y,C,k,g)}}}return n.toTensor()},o.prototype.maxPool3dBackprop=function(t,e,n,r){Hh([e,n],"maxPool3dBackprop");for(var o=this.maxPool3dPositions(e,r),a=r.strideDepth,i=r.strideHeight,s=r.strideWidth,u=r.dilationDepth,c=r.dilationHeight,l=r.dilationWidth,h=r.effectiveFilterDepth,f=r.effectiveFilterHeight,d=r.effectiveFilterWidth,p=h-1-r.padInfo.front,v=d-1-r.padInfo.left,m=f-1-r.padInfo.top,g=dr(e.shape,"float32"),y=this.bufferSync(o),x=this.bufferSync(t),b=0;b<r.batchSize;++b)for(var w=0;w<r.inChannels;++w)for(var C=0;C<r.inDepth;++C)for(var E=0;E<r.inHeight;++E)for(var R=0;R<r.inWidth;++R){for(var I=C-p,k=E-m,S=R-v,A=0,D=0;D<h;D+=u){var T=(I+D)/a;if(!(T<0||T>=r.outDepth||Math.floor(T)!==T))for(var N=0;N<f;N+=c){var F=(k+N)/i;if(!(F<0||F>=r.outHeight||Math.floor(F)!==F))for(var _=0;_<d;_+=l){var O=(S+_)/s;if(!(O<0||O>=r.outWidth||Math.floor(O)!==O)){var M=h*f*d-1-y.get(b,T,F,O,w)===D*f*d+N*d+_?1:0;if(0!==M)A+=x.get(b,T,F,O,w)*M}}}}g.set(A,b,C,E,R,w)}return g.toTensor()},o.prototype.cast=function(t,e){return Po(t,e,this)},o.prototype.reshape=function(t,e){return Lo(t,e)},o.prototype.avgPool=function(t,e){return Hh(t,"avgPool"),this.pool(t,e,"avg").toFloat()},o.prototype.resizeBilinear=function(t,e,n,r){Hh(t,"resizeBilinear");for(var o=t.shape,a=o[0],i=o[1],s=o[2],u=o[3],c=this.readSync(t.dataId),l=new Float32Array(k([a,e,n,u])),h=[r&&e>1?i-1:i,r&&n>1?s-1:s],f=[r&&e>1?e-1:e,r&&n>1?n-1:n],d=0,p=h[0]/f[0],v=h[1]/f[1],m=0;m<a;m++)for(var g=0;g<e;g++)for(var y=p*g,x=Math.floor(y),b=y-x,w=Math.min(i-1,Math.ceil(y)),C=m*t.strides[0]+x*t.strides[1],E=m*t.strides[0]+w*t.strides[1],R=0;R<n;R++)for(var I=v*R,S=Math.floor(I),A=I-S,D=Math.min(s-1,Math.ceil(I)),T=C+S*t.strides[2],N=E+S*t.strides[2],F=C+D*t.strides[2],_=E+D*t.strides[2],O=0;O<u;O++){var M=c[T+O],B=c[N+O],P=M+(c[F+O]-M)*A,L=P+(B+(c[_+O]-B)*A-P)*b;l[d++]=L}return Fn(l,[a,e,n,u])},o.prototype.resizeBilinearBackprop=function(t,e,n){Hh([t,e],"resizeBilinearBackprop");for(var r=e.shape,o=r[0],a=r[1],i=r[2],s=r[3],u=t.shape,c=u[1],l=u[2],h=new Float32Array(o*a*i*s),f=[n&&c>1?a-1:a,n&&l>1?i-1:i],d=[n&&c>1?c-1:c,n&&l>1?l-1:l],p=f[0]/d[0],v=f[1]/d[1],m=this.readSync(t.dataId),g=0,y=0;y<o;y++)for(var x=y*e.strides[0],b=0;b<c;b++)for(var w=b*p,C=Math.floor(w),E=Math.min(Math.ceil(w),a-1),R=x+C*e.strides[1],I=x+E*e.strides[1],k=w-C,S=1-k,A=0;A<l;A++)for(var D=A*v,T=Math.floor(D),N=Math.min(Math.ceil(D),i-1),F=D-T,_=1-F,O=R+T*e.strides[2],M=R+N*e.strides[2],B=I+T*e.strides[2],P=I+N*e.strides[2],L=S*_,W=S*F,U=k*_,V=k*F,z=0;z<s;z++){var G=m[g++];h[O+z]+=G*L,h[M+z]+=G*W,h[B+z]+=G*U,h[P+z]+=G*V}return Ln(h,[o,i,a,s],e.dtype)},o.prototype.resizeNearestNeighbor=function(t,e,n,r){Hh(t,"resizeNearestNeighbor");for(var o=t.shape,a=o[0],i=o[1],s=o[2],u=o[3],c=this.readSync(t.dataId),l=new Float32Array(a*e*n*u),h=[r&&e>1?i-1:i,r&&n>1?s-1:s],f=[r&&e>1?e-1:e,r&&n>1?n-1:n],d=h[0]/f[0],p=h[1]/f[1],v=0,m=0;m<a;m++)for(var g=m*t.strides[0],y=0;y<e;y++)for(var x=d*y,b=g+Math.min(i-1,r?Math.round(x):Math.floor(x))*t.strides[1],w=0;w<n;w++)for(var C=p*w,E=b+Math.min(s-1,r?Math.round(C):Math.floor(C))*t.strides[2],R=0;R<u;R++){var I=c[E+R];l[v++]=I}return Fn(l,[a,e,n,u],t.dtype)},o.prototype.resizeNearestNeighborBackprop=function(t,e,n){Hh([t,e],"resizeNearestNeighborBackprop");for(var r=e.shape,o=r[0],a=r[1],i=r[2],s=r[3],u=t.shape,c=u[1],l=u[2],h=new Float32Array(o*a*i*s),f=this.readSync(t.dataId),d=[n&&c>1?a-1:a,n&&l>1?i-1:i],p=[n&&c>1?c-1:c,n&&l>1?l-1:l],v=d[0]/p[0],m=d[1]/p[1],g=1/v,y=1/m,x=2*Math.ceil(g)+2,b=2*Math.ceil(y)+2,w=0;w<o;w++)for(var C=w*e.strides[0],E=0;E<a;E++)for(var R=C+E*e.strides[1],I=Math.floor(E*g),k=Math.floor(I-x/2),S=0;S<i;S++)for(var A=R+S*e.strides[2],D=Math.floor(S*y),T=Math.floor(D-b/2),N=0;N<s;N++){for(var F=0,_=0;_<x;_++){var O=_+k;if(!(O<0||O>=c)){var M=C+O*t.strides[1],B=O*v;if(E===Math.min(a-1,n?Math.round(B):Math.floor(B)))for(var P=0;P<b;P++){var L=P+T;if(!(L<0||L>=l)){var W=M+L*t.strides[2],U=L*m;S===Math.min(i-1,n?Math.round(U):Math.floor(U))&&(F+=f[W+N])}}}}h[A+N]=F}return Ln(h,e.shape,e.dtype)},o.prototype.batchNormalization=function(t,e,n,r,o,a){Hh([t,e,n,o,a],"batchNorm");for(var i=this.readSync(t.dataId),s=this.readSync(e.dataId),u=this.readSync(n.dataId),c=o?this.readSync(o.dataId):new Float32Array([1]),l=a?this.readSync(a.dataId):new Float32Array([0]),h=new Float32Array(i.length),f=l.length,d=c.length,p=u.length,v=s.length,m=0,g=0,y=0,x=0,b=0;b<i.length;++b)h[b]=l[m++]+(i[b]-s[g++])*c[y++]/Math.sqrt(u[x++]+r),m>=f&&(m=0),g>=v&&(g=0),y>=d&&(y=0),x>=p&&(x=0);return Ln(h,t.shape)},o.prototype.localResponseNormalization4D=function(t,e,n,r,o){Hh(t,"localResponseNormalization4D");var a=t.shape[3],i=a-1,s=this.readSync(t.dataId),u=t.size,c=new Float32Array(u);function l(t){for(var n=t%a,r=t-n+Math.max(0,n-e),o=t-n+Math.min(n+e,i),u=0;r<=o;r++){var c=s[r];u+=c*c}return u}for(var h=0;h<u;h++){var f=l(h),d=s[h]*Math.pow(n+r*f,-o);c[h]=d}return Ln(c,t.shape)},o.prototype.LRNGrad=function(t,e,n,r,o,a,i){Hh(t,"LRNGrad");for(var s=t.shape[3],u=this.readSync(t.dataId),c=this.readSync(e.dataId),l=this.readSync(n.dataId),h=new Float32Array(t.size),f=t.size,d=0;d<f;d++){for(var p=d%s,v=d-p+Math.max(0,p-r),m=d-p+Math.min(s,p+r+1),g=0,y=v;y<m;y++)g+=Math.pow(c[y],2);g=a*g+o;for(y=v;y<m;y++){var x=-2*a*i*c[y]*l[d]/g;d===y&&(x+=Math.pow(g,-i)),x*=u[d],h[y]+=x}}return Ln(h,t.shape)},o.prototype.multinomial=function(t,e,n,r){Hh(t,"multinomial");for(var o=e?t:go(t),a=o.shape[0],i=o.shape[1],s=Gn([a,n],"int32"),u=this.readSync(s.dataId),c=this.readSync(o.dataId),l=0;l<a;++l){var h=l*i,f=new Float32Array(i-1);f[0]=c[h];for(var d=1;d<f.length;++d)f[d]=f[d-1]+c[h+d];for(var p=cr(r.toString()),v=l*n,m=0;m<n;++m){var g=p();u[v+m]=f.length;for(var y=0;y<f.length;y++)if(g<f[y]){u[v+m]=y;break}}}return s},o.prototype.oneHot=function(t,e,n,r){Hh(t,"oneHot");var o=new Float32Array(t.size*e);o.fill(r);for(var a=this.readSync(t.dataId),i=0;i<t.size;++i)a[i]>=0&&a[i]<e&&(o[i*e+a[i]]=n);return Bn(o,[t.size,e],"int32")},o.prototype.nonMaxSuppression=function(t,e,n,r,o){return Hh(t,"nonMaxSuppression"),jo(this.readSync(t.dataId),this.readSync(e.dataId),n,r,o)},o.prototype.fft=function(t){return this.fftBatch(t,!1)},o.prototype.ifft=function(t){return this.fftBatch(t,!0)},o.prototype.fftBatch=function(t,e){for(var n=t.shape[0],r=t.shape[1],o=dr(t.shape,"float32"),a=dr(t.shape,"float32"),i=Tn(t).as2D(n,r),s=Nn(t).as2D(n,r),u=0;u<n;u++)for(var c=i.slice([u,0],[1,r]),l=s.slice([u,0],[1,r]),h=Dn(c,l),f=this.readSync(this.fftImpl(h,e).dataId),d=0;d<r;d++){var p=zo(f,d);o.values[u*r+d]=p.real,a.values[u*r+d]=p.imag}return Dn(o.toTensor(),a.toTensor()).as2D(n,r)},o.prototype.fftImpl=function(t,e){var n=t.as1D(),r=n.size;if(this.isExponentOf2(r)){var o=this.fftRadix2(n,r,e).as2D(t.shape[0],t.shape[1]);return e&&(o=Dn(Tn(o).div(On(r)),Nn(o).div(On(r)))),o}var a=this.readSync(t.dataId),i=function(t){for(var e=new Float32Array(t.length/2),n=new Float32Array(t.length/2),r=0;r<t.length;r+=2)e[r/2]=t[r],n[r/2]=t[r+1];return{real:e,imag:n}}(this.fourierTransformByMatmul(a,r,e));return Dn(i.real,i.imag).as2D(t.shape[0],t.shape[1])},o.prototype.isExponentOf2=function(t){return 0==(t&t-1)},o.prototype.fftRadix2=function(t,e,n){if(1===e)return t;var r=this.readSync(t.dataId),o=e/2,a=function(t){for(var e=Math.ceil(t.length/4),n=new Float32Array(e),r=new Float32Array(e),o=0;o<t.length;o+=4)n[Math.floor(o/4)]=t[o],r[Math.floor(o/4)]=t[o+1];return{real:n,imag:r}}(r),i=Dn(a.real,a.imag).as1D(),s=function(t){for(var e=Math.floor(t.length/4),n=new Float32Array(e),r=new Float32Array(e),o=2;o<t.length;o+=4)n[Math.floor(o/4)]=t[o],r[Math.floor(o/4)]=t[o+1];return{real:n,imag:r}}(r),u=Dn(s.real,s.imag).as1D();i=this.fftRadix2(i,o,n),u=this.fftRadix2(u,o,n);var c=function(t,e){for(var n=new Float32Array(t/2),r=new Float32Array(t/2),o=0;o<Math.ceil(t/2);o++){var a=(e?2:-2)*Math.PI*(o/t);n[o]=Math.cos(a),r[o]=Math.sin(a)}return{real:n,imag:r}}(e,n),l=Dn(c.real,c.imag).mul(u),h=i.add(l),f=i.sub(l),d=Tn(h).concat(Tn(f)),p=Nn(h).concat(Nn(f));return Dn(d,p).as1D()},o.prototype.fourierTransformByMatmul=function(t,e,n){for(var r=new Float32Array(2*e),o=0;o<e;o++){for(var a=0,i=0,s=0;s<e;s++){var u=Ho(o*s,e,n),c=zo(t,s);a+=c.real*u.real-c.imag*u.imag,i+=c.real*u.imag+c.imag*u.real}n&&(a/=e,i/=e),Go(r,a,i,o)}return r},o.prototype.depthToSpace=function(t,e,n){C("NHWC"===n,(function(){return"Only NHWC dataFormat supported on CPU for depthToSpace. Got "+n})),C(e>1,(function(){return"blockSize should be > 1 for depthToSpace, but was: "+e}));for(var r=t.shape[0],o=t.shape[1],a=t.shape[2],i=t.shape[3],s=o*e,u=a*e,c=i/(e*e),l=this.readSync(t.dataId),h=new Float32Array(r*s*u*c),f=0,d=0;d<r;++d)for(var p=0;p<s;++p)for(var v=Math.floor(p/e),m=p%e,g=0;g<u;++g)for(var y=Math.floor(g/e),x=(m*e+g%e)*c,b=0;b<c;++b){var w=b+x+i*(y+a*(v+o*d));h[f++]=l[w]}return Ln(h,[r,s,u,c])},o.prototype.broadcastedBinaryOp=function(t,e,n,r){var o=Ro(t.shape,e.shape),a=dr(o,n),i=this.readSync(t.dataId),s=this.readSync(e.dataId),u=Co(t.shape,o),c=Co(e.shape,o),l=a.values;if(u.length+c.length===0)for(var h=0;h<l.length;++h)l[h]=r(i[h%i.length],s[h%s.length]);else{var f=this.bufferSync(t),d=this.bufferSync(e),p=function(n){var o=a.indexToLoc(n),h=o.slice(-t.rank);u.forEach((function(t){return h[t]=0}));var p=f.locToIndex(h),v=o.slice(-e.rank);c.forEach((function(t){return v[t]=0}));var m=d.locToIndex(v);l[n]=r(i[p],s[m])};for(h=0;h<l.length;++h)p(h)}return a.toTensor()},o.prototype.broadcastedBinaryComplexOp=function(t,e,n){var r=Ro(t.shape,e.shape),o=dr(r,"float32"),a=dr(r,"float32"),i=this.readSync(t.dataId),s=this.readSync(e.dataId),u=Co(t.shape,r),c=Co(e.shape,r),l=o.values,h=a.values;if(u.length+c.length===0)for(var f=0;f<l.length;f++){var d=f%i.length,p=f%s.length,v=n(i[2*d],i[2*d+1],s[2*p],s[2*p+1]);l[f]=v.real,h[f]=v.imag}else{var m=this.bufferSync(this.data.get(t.dataId).complexTensors.real),g=this.bufferSync(this.data.get(e.dataId).complexTensors.real),y=function(r){var a=o.indexToLoc(r),f=a.slice(-t.rank);u.forEach((function(t){return f[t]=0}));var d=m.locToIndex(f),p=a.slice(-e.rank);c.forEach((function(t){return p[t]=0}));var v=g.locToIndex(p),y=n(i[2*d],i[2*d+1],s[2*v],s[2*v+1]);l[r]=y.real,h[r]=y.imag};for(f=0;f<l.length;f++)y(f)}return this.complex(o.toTensor(),a.toTensor())},o.prototype.split=function(t,e,n){return Zo(t,e,n)},o.prototype.dispose=function(){},o.prototype.floatPrecision=function(){return 32},o.prototype.epsilon=function(){return 1e-7},o.prototype.cropAndResize=function(t,e,n,r,o,a){for(var i=t.shape,s=i[0],u=i[1],c=i[2],l=i[3],h=e.shape[0],f=r[0],d=r[1],p=dr([h,f,d,l],"float32"),v=this.readSync(e.dataId),m=this.readSync(n.dataId),g=this.readSync(t.dataId),y=t.strides,x=p.strides,b=0;b<h;b++){var w=4*b,C=v[w],E=v[w+1],R=v[w+2],I=v[w+3],k=m[b];if(!(k>=s))for(var S=f>1?(R-C)*(u-1)/(f-1):0,A=d>1?(I-E)*(c-1)/(d-1):0,D=0;D<f;D++){var T=f>1?C*(u-1)+D*S:.5*(C+R)*(u-1);if(T<0||T>u-1)for(var N=0;N<d;N++)for(var F=0;F<l;F++){var _=F+N*x[2]+D*x[1]+b*x[0];p.values[_]=a}else if("bilinear"===o){var O=Math.floor(T),M=Math.ceil(T),B=T-O;for(N=0;N<d;N++){if((q=d>1?E*(c-1)+N*A:.5*(E+I)*(c-1))<0||q>c-1)for(F=0;F<l;F++){_=F+N*x[2]+D*x[1]+b*x[0];p.values[_]=a}else{var P=Math.floor(q),L=Math.ceil(q),W=q-P;for(F=0;F<l;F++){var U=g[_=F+P*y[2]+O*y[1]+k*y[0]],V=g[_=F+L*y[2]+O*y[1]+k*y[0]],z=g[_=F+P*y[2]+M*y[1]+k*y[0]],G=U+(V-U)*W,H=z+(g[_=F+L*y[2]+M*y[1]+k*y[0]]-z)*W;_=F+N*x[2]+D*x[1]+b*x[0],p.values[_]=G+(H-G)*B}}}}else for(N=0;N<d;++N){var q;if((q=d>1?E*(c-1)+N*A:.5*(E+I)*(c-1))<0||q>c-1)for(F=0;F<l;F++){_=F+N*x[2]+D*x[1]+b*x[0];p.values[_]=a}else{var K=Math.round(q),j=Math.round(T);for(F=0;F<l;F++){var X=F+K*y[2]+j*y[1]+k*y[0],Y=F+N*x[2]+D*x[1]+b*x[0];p.values[Y]=g[X]}}}}}return p.toTensor()},o.prototype.sparseToDense=function(t,e,n,r){var o=Zr(0,t,n),a=o.sliceRank,i=o.numUpdates,s=o.sliceSize,u=o.strides,c=o.outputSize;return this.scatter(t,e,n,c,s,i,a,u,r,!1)},o.prototype.gatherND=function(t,e){var n=e.shape,r=n[n.length-1],o=jr(t,e),a=o[0],i=o[1],s=o[2],u=o[3];if(0===i)return Fn([],a,t.dtype);for(var c=new gt([i,s],t.dtype),l=this.readSync(e.dataId),h=this.readSync(t.dataId),f=0;f<i;f++){for(var d=[],p=0,v=0;v<r;v++){var m=l[f*r+v];p+=m*u[v],d.push(m)}if(p<0||p>=t.size/s)throw new Error("Invalid indices: "+d+" does not index into "+t.shape);for(var g=0;g<s;g++)c.values[f*s+g]=h[p*s+g]}return c.toTensor().reshape(a)},o.prototype.scatterND=function(t,e,n){var r=Zr(0,t,n),o=r.sliceRank,a=r.numUpdates,i=r.sliceSize,s=r.strides,u=r.outputSize,c=On(0);return this.scatter(t,e,n,u,i,a,o,s,c,!0)},o.prototype.fill=function(t,e,n){var r=P(n=n||j(e),k(t));return r.fill(e),Lt.makeTensor(r,t,n,this)},o.prototype.onesLike=function(t){if("string"===t.dtype)throw new Error("onesLike is not supported for string tensors");return this.fill(t.shape,1,t.dtype)},o.prototype.zerosLike=function(t){var e=P(t.dtype,k(t.shape));return this.makeOutput(e,t.shape,t.dtype)},o.prototype.linspace=function(t,e,n){return Wo(t,e,n)},o.prototype.scatter=function(t,e,n,r,o,a,i,s,u,c){var l=[r/o,o],h=this.readSync(t.dataId),f=this.readSync(e.dataId);if(0===r)return Fn([],n,e.dtype);var d=new gt(l,e.dtype);d.values.fill(this.readSync(u.dataId)[0]);for(var p=0;p<a;p++){for(var v=[],m=0,g=0;g<i;g++){var y=h[p*i+g];v.push(y),m+=y*s[g]}if(m<0||m>=r/o)throw new Error("Invalid indices: "+v+" does not index into "+n);for(var x=0;x<o;x++)c?d.values[m*o+x]+=f[p*o+x]:d.values[m*o+x]=0===e.rank?f[0]:f[p*o+x]}return d.toTensor().reshape(n)},o}(bo);Lt.registerBackend("cpu",(function(){return new Kh}),1);for(var jh=0,Xh=[{kernelName:"NonMaxSuppressionV5",backendName:"cpu",kernelFunc:function(t){var e=t.inputs,n=t.backend,r=t.attrs,o=e,a=o.boxes,i=o.scores,s=r,u=s.maxOutputSize,c=s.iouThreshold,l=s.scoreThreshold,h=s.softNmsSigma,f=n;Hh(a,"NonMaxSuppressionWithScore");var d=Xo(f.data.get(a.dataId).values,f.data.get(i.dataId).values,u,c,l,h);return[d.selectedIndices,d.selectedScores]}},{kernelName:"Square",backendName:"cpu",kernelFunc:function(t){var e=t.inputs,n=t.backend,r=e.x,o=n;Hh(r,"square");for(var a=o.data.get(r.dataId).values,i=new Float32Array(a.length),s=0;s<a.length;++s){var u=a[s];i[s]=u*u}return{dataId:o.write(i,r.shape,r.dtype),shape:r.shape,dtype:r.dtype}}},{kernelName:eu,backendName:"cpu",kernelFunc:function(t){var e=t.inputs,n=t.backend,r=e,o=r.a,a=r.b,i=n;Hh([o,a],eu);var s=i.data.get(o.dataId).values,u=i.data.get(a.dataId).values,c=function(t,e,n,r,o,a){var i=Ro(t,e),s=i.length,u=$(i),c=B(o,k(i)),l=t.length,h=e.length,f=$(t),d=$(e),p=Co(t,i),v=Co(e,i);if(p.length+v.length===0)for(var m=0;m<c.length;++m)c[m]=a(n[m%n.length],r[m%r.length]);else{var g=function(t){var e=it(t,s,u),o=e.slice(-l);p.forEach((function(t){return o[t]=0}));var i=at(o,l,f),m=e.slice(-h);v.forEach((function(t){return m[t]=0}));var g=at(m,h,d);c[t]=a(n[i],r[g])};for(m=0;m<c.length;++m)g(m)}return[c,i]}(o.shape,a.shape,s,u,o.dtype,(function(t,e){var n=t-e;return n*n})),l=c[0],h=c[1];return{dataId:i.write(l,h,o.dtype),shape:h,dtype:o.dtype}}}];jh<Xh.length;jh++){d(Xh[jh])}var Yh,$h=function(t){this.variableNames=["A"];var e=ua(),n=t[0],r=t[1];this.outputShape=t,this.userCode="\n void main() {\n ivec3 coords = getOutputCoords();\n int texR = coords[0];\n int texC = coords[1];\n int depth = coords[2];\n vec2 uv = (vec2(texC, texR) + halfCR) / vec2("+r+".0, "+n+".0);\n\n vec4 values = "+e.texture2D+"(A, uv);\n float value;\n if (depth == 0) {\n value = values.r;\n } else if (depth == 1) {\n value = values.g;\n } else if (depth == 2) {\n value = values.b;\n } else if (depth == 3) {\n value = values.a;\n }\n\n setOutput(floor(value * 255.0 + 0.5));\n }\n "},Qh=function(t){this.variableNames=["A"],this.packedInputs=!1,this.packedOutput=!0;var e=ua(),n=t[0],r=t[1];this.outputShape=t,this.userCode="\n void main() {\n ivec3 coords = getOutputCoords();\n int texR = coords[0];\n int texC = coords[1];\n int depth = coords[2];\n\n vec4 result = vec4(0.);\n\n for(int row=0; row<=1; row++) {\n for(int col=0; col<=1; col++) {\n texC = coords[1] + row;\n depth = coords[2] + col;\n\n vec2 uv = (vec2(texC, texR) + halfCR) /\n vec2("+r+".0, "+n+".0);\n vec4 values = "+e.texture2D+"(A, uv);\n float value;\n if (depth == 0) {\n value = values.r;\n } else if (depth == 1) {\n value = values.g;\n } else if (depth == 2) {\n value = values.b;\n } else if (depth == 3) {\n value = values.a;\n }\n\n result[row * 2 + col] = floor(value * 255.0 + 0.5);\n }\n }\n\n "+e.output+" = result;\n }\n "};for(var Jh=0,Zh=[{kernelName:"FromPixels",backendName:"webgl",kernelFunc:function(t){var e=t.inputs,n=t.backend,r=t.attrs,o=e.pixels,a=r.numChannels,s="undefined"!=typeof HTMLVideoElement&&o instanceof HTMLVideoElement,u="undefined"!=typeof HTMLImageElement&&o instanceof HTMLImageElement,c=s?[o.videoWidth,o.videoHeight]:[o.width,o.height],l=c[0],h=c[1],f=[h,l],d=[h,l,a];(u||s)&&(null==Yh&&(Yh=document.createElement("canvas").getContext("2d")),Yh.canvas.width=l,Yh.canvas.height=h,Yh.drawImage(o,0,0,l,h),o=Yh.canvas);var p=n.makeTensorInfo(f,"int32");n.texData.get(p.dataId).usage=zt.PIXELS,n.gpgpu.uploadPixelDataToTexture(n.getTexture(p.dataId),o);var v=i().getBool("WEBGL_PACK")?new Qh(d):new $h(d),m=n.runWebGLProgram(v,[p],"int32");return n.disposeData(p.dataId),m}},{kernelName:"NonMaxSuppressionV5",backendName:"webgl",kernelFunc:function(t){var e=t.inputs,n=t.backend,r=t.attrs;dn("tf.nonMaxSuppression() in webgl locks the UI thread. Call tf.nonMaxSuppressionAsync() instead");var o=e,a=o.boxes,i=o.scores,s=r,u=s.maxOutputSize,c=s.iouThreshold,l=s.scoreThreshold,h=s.softNmsSigma,f=n,d=Xo(f.readSync(a.dataId),f.readSync(i.dataId),u,c,l,h);return[d.selectedIndices,d.selectedScores]}},{kernelName:"Square",backendName:"webgl",kernelFunc:function(t){var e=t.inputs,n=t.backend,r=e.x,o=n,a=new Cs(r.shape,"return x * x;");return o.runWebGLProgram(a,[r],r.dtype)}},{kernelName:eu,backendName:"webgl",kernelFunc:function(t){var e=t.inputs,n=t.backend,r=e,o=r.a,a=r.b,s=n,u=i().getBool("WEBGL_PACK_BINARY_OPERATIONS")?new La("return (a - b) * (a - b);",o.shape,a.shape):new Ba("return (a - b) * (a - b);",o.shape,a.shape);return s.compileAndRun(u,[o,a])}}];Jh<Zh.length;Jh++){d(Zh[Jh])}for(var tf=0,ef=[{kernelName:"Square",gradFunc:function(t,e){var n=e[0];return{x:function(){return t.mul(n.toFloat().mul(2))}}}},{kernelName:eu,gradFunc:function(t,e){var n=e[0],r=e[1],o=On(2);return{a:function(){return gc(t,gc(o,Cc(n,r)))},b:function(){return gc(t,gc(o,Cc(r,n)))}}}}];tf<ef.length;tf++){p(ef[tf])}var nf=function(){function t(){}return t.prototype.fetch=function(t,e){return fetch(t,e)},t.prototype.now=function(){return performance.now()},t.prototype.encode=function(t,e){if("utf-8"!==e&&"utf8"!==e)throw new Error("Browser's encoder only supports utf-8, but got "+e);return null==this.textEncoder&&(this.textEncoder=new TextEncoder),this.textEncoder.encode(t)},t.prototype.decode=function(t,e){return new TextDecoder(e).decode(t)},t}();i().get("IS_BROWSER")&&i().setPlatform("browser",new nf);var rf,of=function(){return require("node-fetch")},af=function(){function t(){this.util=require("util"),this.textEncoder=new this.util.TextEncoder}return t.prototype.fetch=function(t,e){return null!=i().global.fetch?i().global.fetch(t,e):(null==rf&&(rf=of()),rf(t,e))},t.prototype.now=function(){var t=process.hrtime();return 1e3*t[0]+t[1]/1e6},t.prototype.encode=function(t,e){if("utf-8"!==e&&"utf8"!==e)throw new Error("Node built-in encoder only supports utf-8, but got "+e);return this.textEncoder.encode(t)},t.prototype.decode=function(t,e){return 0===t.length?"":new this.util.TextDecoder(e).decode(t)},t}();i().get("IS_NODE")&&i().setPlatform("node",new af);var sf={float32:4,int32:4,uint16:2,uint8:1,bool:1},uf=4;function cf(t,e){for(var n={},r=0,o=function(e){var o=e.name,a=e.dtype,i=e.shape,s=k(i),u=void 0;if("quantization"in e){var c=e.quantization;if("uint8"!==c.dtype&&"uint16"!==c.dtype)throw new Error("Weight "+e.name+" has unknown quantization dtype "+c.dtype+". Supported quantization dtypes are: 'uint8' and 'uint16'.");var l=sf[c.dtype],h=t.slice(r,r+s*l),f="uint8"===c.dtype?new Uint8Array(h):new Uint16Array(h);if("float32"===a)u=Float32Array.from(f,(function(t){return t*c.scale+c.min}));else{if("int32"!==a)throw new Error("Unsupported dtype in weight '"+o+"': "+a);u=Int32Array.from(f,(function(t){return Math.round(t*c.scale+c.min)}))}r+=s*l}else if("string"===a){var d=k(e.shape);u=[];for(var p=0;p<d;p++){var v=new Uint32Array(t.slice(r,r+uf))[0];r+=uf;var m=new Uint8Array(t.slice(r,r+v));u.push(m),r+=v}}else{var g=sf[a];h=t.slice(r,r+s*g);if("float32"===a)u=new Float32Array(h);else if("int32"===a)u=new Int32Array(h);else{if("bool"!==a)throw new Error("Unsupported dtype in weight '"+o+"': "+a);u=new Uint8Array(h)}r+=s*g}n[o]=Fn(u,i,a)},a=0,i=e;a<i.length;a++){o(i[a])}return n}function lf(t){if(null===t)throw new Error("Invalid input value: "+JSON.stringify(t));var e=0,n=[];t.forEach((function(t){if(e+=t.byteLength,n.push(t.byteLength===t.buffer.byteLength?t:new t.constructor(t)),!(t instanceof Float32Array||t instanceof Int32Array||t instanceof Uint8Array))throw new Error("Unsupported TypedArray subtype: "+t.constructor.name)}));var r=new Uint8Array(e),o=0;return n.forEach((function(t){r.set(new Uint8Array(t.buffer),o),o+=t.byteLength})),r.buffer}var hf="undefined"!=typeof Buffer&&("undefined"==typeof Blob||"undefined"==typeof atob||"undefined"==typeof btoa);function ff(t){return hf?Buffer.byteLength(t):new Blob([t]).size}function df(t){var e=0;t.forEach((function(t){e+=t.byteLength}));var n=new Uint8Array(e),r=0;return t.forEach((function(t){n.set(new Uint8Array(t),r),r+=t.byteLength})),n.buffer}function pf(t){for(t=t.trim();t.endsWith("/");)t=t.slice(0,t.length-1);var e=t.split("/");return e[e.length-1]}function vf(t){if(t.modelTopology instanceof ArrayBuffer)throw new Error("Expected JSON model topology, received ArrayBuffer.");return{dateSaved:new Date,modelTopologyType:"JSON",modelTopologyBytes:null==t.modelTopology?0:ff(JSON.stringify(t.modelTopology)),weightSpecsBytes:null==t.weightSpecs?0:ff(JSON.stringify(t.weightSpecs)),weightDataBytes:null==t.weightData?0:t.weightData.byteLength}}var mf=function(){function t(){this.saveRouters=[],this.loadRouters=[]}return t.getInstance=function(){return null==t.instance&&(t.instance=new t),t.instance},t.registerSaveRouter=function(e){t.getInstance().saveRouters.push(e)},t.registerLoadRouter=function(e){t.getInstance().loadRouters.push(e)},t.getSaveHandlers=function(e){return t.getHandlers(e,"save")},t.getLoadHandlers=function(e,n){return t.getHandlers(e,"load",n)},t.getHandlers=function(e,n,r){var o=[];return("load"===n?t.getInstance().loadRouters:t.getInstance().saveRouters).forEach((function(t){var n=t(e,r);null!==n&&o.push(n)})),o},t}(),gf="://",yf=function(){function t(){this.managers={}}return t.getInstance=function(){return null==t.instance&&(t.instance=new t),t.instance},t.registerManager=function(e,n){C(null!=e,(function(){return"scheme must not be undefined or null."})),e.endsWith(gf)&&(e=e.slice(0,e.indexOf(gf))),C(e.length>0,(function(){return"scheme must not be an empty string."}));var r=t.getInstance();C(null==r.managers[e],(function(){return"A model store manager is already registered for scheme '"+e+"'."})),r.managers[e]=n},t.getManager=function(t){var e=this.getInstance().managers[t];if(null==e)throw new Error("Cannot find model manager for scheme '"+t+"'");return e},t.getSchemes=function(){return Object.keys(this.getInstance().managers)},t}();function xf(t){if(-1===t.indexOf(gf))throw new Error("The url string provided does not contain a scheme. Supported schemes are: "+yf.getSchemes().join(","));return{scheme:t.split(gf)[0],path:t.split(gf)[1]}}function bf(t,e,o){return void 0===o&&(o=!1),n(this,void 0,void 0,(function(){var n,a,i,s,u,c,l,h,f;return r(this,(function(r){switch(r.label){case 0:return C(t!==e,(function(){return"Old path and new path are the same: '"+t+"'"})),C((n=mf.getLoadHandlers(t)).length>0,(function(){return"Copying failed because no load handler is found for source URL "+t+"."})),C(n.length<2,(function(){return"Copying failed because more than one ("+n.length+") load handlers for source URL "+t+"."})),a=n[0],C((i=mf.getSaveHandlers(e)).length>0,(function(){return"Copying failed because no save handler is found for destination URL "+e+"."})),C(i.length<2,(function(){return"Copying failed because more than one ("+n.length+") save handlers for destination URL "+e+"."})),s=i[0],u=xf(t).scheme,c=xf(t).path,l=u===xf(t).scheme,[4,a.load()];case 1:return h=r.sent(),o&&l?[4,yf.getManager(u).removeModel(c)]:[3,3];case 2:r.sent(),r.label=3;case 3:return[4,s.save(h)];case 4:return f=r.sent(),!o||l?[3,6]:[4,yf.getManager(u).removeModel(c)];case 5:r.sent(),r.label=6;case 6:return[2,f.modelArtifactsInfo]}}))}))}var wf="models_store",Cf="model_info_store";function Ef(){if(!i().getBool("IS_BROWSER"))throw new Error("Failed to obtain IndexedDB factory because the current environmentis not a web browser.");var t=window||self,e=t.indexedDB||t.mozIndexedDB||t.webkitIndexedDB||t.msIndexedDB||t.shimIndexedDB;if(null==e)throw new Error("The current browser does not appear to support IndexedDB.");return e}function Rf(t){var e=t.result;e.createObjectStore(wf,{keyPath:"modelPath"}),e.createObjectStore(Cf,{keyPath:"modelPath"})}var If=function(){function t(t){if(this.indexedDB=Ef(),null==t||!t)throw new Error("For IndexedDB, modelPath must not be null, undefined or empty.");this.modelPath=t}return t.prototype.save=function(t){return n(this,void 0,void 0,(function(){return r(this,(function(e){if(t.modelTopology instanceof ArrayBuffer)throw new Error("BrowserLocalStorage.save() does not support saving model topology in binary formats yet.");return[2,this.databaseAction(this.modelPath,t)]}))}))},t.prototype.load=function(){return n(this,void 0,void 0,(function(){return r(this,(function(t){return[2,this.databaseAction(this.modelPath)]}))}))},t.prototype.databaseAction=function(t,e){var n=this;return new Promise((function(t,r){var o=n.indexedDB.open("tensorflowjs",1);o.onupgradeneeded=function(){return Rf(o)},o.onsuccess=function(){var a=o.result;if(null==e){var i=a.transaction(wf,"readonly"),s=i.objectStore(wf).get(n.modelPath);s.onsuccess=function(){if(null==s.result)return a.close(),r(new Error("Cannot find model with path '"+n.modelPath+"' in IndexedDB."));t(s.result.modelArtifacts)},s.onerror=function(t){return a.close(),r(s.error)},i.oncomplete=function(){return a.close()}}else{var u,c=vf(e),l=a.transaction(Cf,"readwrite"),h=l.objectStore(Cf),f=h.put({modelPath:n.modelPath,modelArtifactsInfo:c});f.onsuccess=function(){var o=(u=a.transaction(wf,"readwrite")).objectStore(wf).put({modelPath:n.modelPath,modelArtifacts:e,modelArtifactsInfo:c});o.onsuccess=function(){return t({modelArtifactsInfo:c})},o.onerror=function(t){var e=(h=l.objectStore(Cf)).delete(n.modelPath);e.onsuccess=function(){return a.close(),r(o.error)},e.onerror=function(t){return a.close(),r(o.error)}}},f.onerror=function(t){return a.close(),r(f.error)},l.oncomplete=function(){null==u?a.close():u.oncomplete=function(){return a.close()}}}},o.onerror=function(t){return r(o.error)}}))},t.URL_SCHEME="indexeddb://",t}(),kf=function(t){return i().getBool("IS_BROWSER")&&!Array.isArray(t)&&t.startsWith(If.URL_SCHEME)?(e=t.slice(If.URL_SCHEME.length),new If(e)):null;var e};mf.registerSaveRouter(kf),mf.registerLoadRouter(kf);var Sf=function(){function t(){this.indexedDB=Ef()}return t.prototype.listModels=function(){return n(this,void 0,void 0,(function(){var t=this;return r(this,(function(e){return[2,new Promise((function(e,n){var r=t.indexedDB.open("tensorflowjs",1);r.onupgradeneeded=function(){return Rf(r)},r.onsuccess=function(){var t=r.result,o=t.transaction(Cf,"readonly"),a=o.objectStore(Cf).getAll();a.onsuccess=function(){for(var t={},n=0,r=a.result;n<r.length;n++){var o=r[n];t[o.modelPath]=o.modelArtifactsInfo}e(t)},a.onerror=function(e){return t.close(),n(a.error)},o.oncomplete=function(){return t.close()}},r.onerror=function(t){return n(r.error)}}))]}))}))},t.prototype.removeModel=function(t){return n(this,void 0,void 0,(function(){var e=this;return r(this,(function(n){var r;return t=(r=t).startsWith(If.URL_SCHEME)?r.slice(If.URL_SCHEME.length):r,[2,new Promise((function(n,r){var o=e.indexedDB.open("tensorflowjs",1);o.onupgradeneeded=function(){return Rf(o)},o.onsuccess=function(){var e,a=o.result,i=a.transaction(Cf,"readwrite"),s=i.objectStore(Cf),u=s.get(t);u.onsuccess=function(){if(null==u.result)return a.close(),r(new Error("Cannot find model with path '"+t+"' in IndexedDB."));var o=s.delete(t),i=function(){var o=(e=a.transaction(wf,"readwrite")).objectStore(wf).delete(t);o.onsuccess=function(){return n(u.result.modelArtifactsInfo)},o.onerror=function(t){return r(u.error)}};o.onsuccess=i,o.onerror=function(t){return i(),a.close(),r(u.error)}},u.onerror=function(t){return a.close(),r(u.error)},i.oncomplete=function(){null==e?a.close():e.oncomplete=function(){return a.close()}}},o.onerror=function(t){return r(o.error)}}))]}))}))},t}();if(i().getBool("IS_BROWSER"))try{yf.registerManager(If.URL_SCHEME,new Sf)}catch(t){}var Af="/",Df="tensorflowjs_models",Tf="info",Nf="model_topology",Ff="weight_specs",_f="weight_data",Of="model_metadata";function Mf(t){return{info:[Df,t,Tf].join(Af),topology:[Df,t,Nf].join(Af),weightSpecs:[Df,t,Ff].join(Af),weightData:[Df,t,_f].join(Af),modelMetadata:[Df,t,Of].join(Af)}}function Bf(t){var e=t.split(Af);if(e.length<3)throw new Error("Invalid key format: "+t);return e.slice(1,e.length-1).join(Af)}var Pf=function(){function t(t){if(!i().getBool("IS_BROWSER")||"undefined"==typeof window||void 0===window.localStorage)throw new Error("The current environment does not support local storage.");if(this.LS=window.localStorage,null==t||!t)throw new Error("For local storage, modelPath must not be null, undefined or empty.");this.modelPath=t,this.keys=Mf(this.modelPath)}return t.prototype.save=function(t){return n(this,void 0,void 0,(function(){var e,n,o;return r(this,(function(r){if(t.modelTopology instanceof ArrayBuffer)throw new Error("BrowserLocalStorage.save() does not support saving model topology in binary formats yet.");e=JSON.stringify(t.modelTopology),n=JSON.stringify(t.weightSpecs),o=vf(t);try{return this.LS.setItem(this.keys.info,JSON.stringify(o)),this.LS.setItem(this.keys.topology,e),this.LS.setItem(this.keys.weightSpecs,n),this.LS.setItem(this.keys.weightData,function(t){if(hf)return Buffer.from(t).toString("base64");for(var e=new Uint8Array(t),n="",r=0,o=e.length;r<o;r++)n+=String.fromCharCode(e[r]);return btoa(n)}(t.weightData)),this.LS.setItem(this.keys.modelMetadata,JSON.stringify({format:t.format,generatedBy:t.generatedBy,convertedBy:t.convertedBy,userDefinedMetadata:t.userDefinedMetadata})),[2,{modelArtifactsInfo:o}]}catch(t){throw this.LS.removeItem(this.keys.info),this.LS.removeItem(this.keys.topology),this.LS.removeItem(this.keys.weightSpecs),this.LS.removeItem(this.keys.weightData),this.LS.removeItem(this.keys.modelMetadata),new Error("Failed to save model '"+this.modelPath+"' to local storage: size quota being exceeded is a possible cause of this failure: modelTopologyBytes="+o.modelTopologyBytes+", weightSpecsBytes="+o.weightSpecsBytes+", weightDataBytes="+o.weightDataBytes+".")}return[2]}))}))},t.prototype.load=function(){return n(this,void 0,void 0,(function(){var t,e,n,o,a,i,s;return r(this,(function(r){if(null==(t=JSON.parse(this.LS.getItem(this.keys.info))))throw new Error("In local storage, there is no model with name '"+this.modelPath+"'");if("JSON"!==t.modelTopologyType)throw new Error("BrowserLocalStorage does not support loading non-JSON model topology yet.");if(e={},null==(n=JSON.parse(this.LS.getItem(this.keys.topology))))throw new Error("In local storage, the topology of model '"+this.modelPath+"' is missing.");if(e.modelTopology=n,null==(o=JSON.parse(this.LS.getItem(this.keys.weightSpecs))))throw new Error("In local storage, the weight specs of model '"+this.modelPath+"' are missing.");if(e.weightSpecs=o,null!=(a=this.LS.getItem(this.keys.modelMetadata))&&(i=JSON.parse(a),e.format=i.format,e.generatedBy=i.generatedBy,e.convertedBy=i.convertedBy,e.userDefinedMetadata=i.userDefinedMetadata),null==(s=this.LS.getItem(this.keys.weightData)))throw new Error("In local storage, the binary weight values of model '"+this.modelPath+"' are missing.");return e.weightData=function(t){if(hf){var e=Buffer.from(t,"base64");return e.buffer.slice(e.byteOffset,e.byteOffset+e.byteLength)}for(var n=atob(t),r=new Uint8Array(n.length),o=0;o<n.length;++o)r.set([n.charCodeAt(o)],o);return r.buffer}(s),[2,e]}))}))},t.URL_SCHEME="localstorage://",t}(),Lf=function(t){return i().getBool("IS_BROWSER")&&!Array.isArray(t)&&t.startsWith(Pf.URL_SCHEME)?(e=t.slice(Pf.URL_SCHEME.length),new Pf(e)):null;var e};mf.registerSaveRouter(Lf),mf.registerLoadRouter(Lf);var Wf=function(){function t(){C(i().getBool("IS_BROWSER"),(function(){return"Current environment is not a web browser"})),C("undefined"==typeof window||void 0!==window.localStorage,(function(){return"Current browser does not appear to support localStorage"})),this.LS=window.localStorage}return t.prototype.listModels=function(){return n(this,void 0,void 0,(function(){var t,e,n,o,a,i;return r(this,(function(r){for(t={},e=Df+Af,n=Af+Tf,o=0;o<this.LS.length;++o)(a=this.LS.key(o)).startsWith(e)&&a.endsWith(n)&&(i=Bf(a),t[i]=JSON.parse(this.LS.getItem(a)));return[2,t]}))}))},t.prototype.removeModel=function(t){return n(this,void 0,void 0,(function(){var e,n;return r(this,(function(r){var o;if(t=(o=t).startsWith(Pf.URL_SCHEME)?o.slice(Pf.URL_SCHEME.length):o,e=Mf(t),null==this.LS.getItem(e.info))throw new Error("Cannot find model at path '"+t+"'");return n=JSON.parse(this.LS.getItem(e.info)),this.LS.removeItem(e.info),this.LS.removeItem(e.topology),this.LS.removeItem(e.weightSpecs),this.LS.removeItem(e.weightData),[2,n]}))}))},t}();if(i().getBool("IS_BROWSER"))try{yf.registerManager(Pf.URL_SCHEME,new Wf)}catch(t){}var Uf="model",Vf=".json",zf=".weights.bin";function Gf(t){return new Promise((function(t){return setTimeout(t)})).then(t)}var Hf=function(){function t(e){if(!i().getBool("IS_BROWSER"))throw new Error("browserDownloads() cannot proceed because the current environment is not a browser.");e.startsWith(t.URL_SCHEME)&&(e=e.slice(t.URL_SCHEME.length)),null!=e&&0!==e.length||(e=Uf),this.modelTopologyFileName=e+Vf,this.weightDataFileName=e+zf}return t.prototype.save=function(t){return n(this,void 0,void 0,(function(){var e,n,o,a,i,s;return r(this,(function(r){switch(r.label){case 0:if("undefined"==typeof document)throw new Error("Browser downloads are not supported in this environment since `document` is not present");if(e=window.URL.createObjectURL(new Blob([t.weightData],{type:"application/octet-stream"})),!(t.modelTopology instanceof ArrayBuffer))return[3,1];throw new Error("BrowserDownloads.save() does not support saving model topology in binary formats yet.");case 1:return n=[{paths:["./"+this.weightDataFileName],weights:t.weightSpecs}],o={modelTopology:t.modelTopology,format:t.format,generatedBy:t.generatedBy,convertedBy:t.convertedBy,weightsManifest:n},a=window.URL.createObjectURL(new Blob([JSON.stringify(o)],{type:"application/json"})),(i=null==this.jsonAnchor?document.createElement("a"):this.jsonAnchor).download=this.modelTopologyFileName,i.href=a,[4,Gf((function(){return i.dispatchEvent(new MouseEvent("click"))}))];case 2:return r.sent(),null==t.weightData?[3,4]:((s=null==this.weightDataAnchor?document.createElement("a"):this.weightDataAnchor).download=this.weightDataFileName,s.href=e,[4,Gf((function(){return s.dispatchEvent(new MouseEvent("click"))}))]);case 3:r.sent(),r.label=4;case 4:return[2,{modelArtifactsInfo:vf(t)}]}}))}))},t.URL_SCHEME="downloads://",t}(),qf=function(){function t(t){if(null==t||t.length<1)throw new Error("When calling browserFiles, at least 1 file is required, but received "+t);this.files=t}return t.prototype.load=function(){return n(this,void 0,void 0,(function(){var t,e,n=this;return r(this,(function(r){return t=this.files[0],e=this.files.slice(1),[2,new Promise((function(r,o){var a=new FileReader;a.onload=function(a){var i=JSON.parse(a.target.result),s=i.modelTopology;if(null!=s){0===e.length&&r({modelTopology:s});var u=i.weightsManifest;if(null!=u){var c;try{c=n.checkManifestAndWeightFiles(u,e)}catch(t){return void o(t)}var l=[],h=[],f=[];u.forEach((function(t){t.paths.forEach((function(t){h.push(t),f.push(null)})),l.push.apply(l,t.weights)})),u.forEach((function(t){t.paths.forEach((function(t){var e=new FileReader;e.onload=function(e){var n=e.target.result,o=h.indexOf(t);f[o]=n,-1===f.indexOf(null)&&r({modelTopology:s,weightSpecs:l,weightData:df(f),format:i.format,generatedBy:i.generatedBy,convertedBy:i.convertedBy,userDefinedMetadata:i.userDefinedMetadata})},e.onerror=function(e){return o("Failed to weights data from file of path '"+t+"'.")},e.readAsArrayBuffer(c[t])}))}))}else o(new Error("weightManifest field is missing from file "+t.name))}else o(new Error("modelTopology field is missing from file "+t.name))},a.onerror=function(e){return o("Failed to read model topology and weights manifest JSON from file '"+t.name+"'. BrowserFiles supports loading Keras-style tf.Model artifacts only.")},a.readAsText(t)}))]}))}))},t.prototype.checkManifestAndWeightFiles=function(t,e){for(var n=[],r=e.map((function(t){return pf(t.name)})),o={},a=0,i=t;a<i.length;a++){i[a].paths.forEach((function(t){var a=pf(t);if(-1!==n.indexOf(a))throw new Error("Duplicate file basename found in weights manifest: '"+a+"'");if(n.push(a),-1===r.indexOf(a))throw new Error("Weight file with basename '"+a+"' is not provided.");o[t]=e[r.indexOf(a)]}))}if(n.length!==e.length)throw new Error("Mismatch in the number of files in weights manifest ("+n.length+") and the number of weight files provided ("+e.length+").");return o},t}();function Kf(t,e,n,r){!function(t){C(null!=t&&Array.isArray(t)&&t.length>0,(function(){return"promises must be a none empty array"}))}(t),function(t,e){C(t>=0&&t<=1,(function(){return"Progress fraction must be in range [0, 1], but got startFraction "+t})),C(e>=0&&e<=1,(function(){return"Progress fraction must be in range [0, 1], but got endFraction "+e})),C(e>=t,(function(){return"startFraction must be no more than endFraction, but got startFraction "+t+" and endFraction "+e}))}(n=null==n?0:n,r=null==r?1:r);var o=0;return Promise.all(t.map((function(a){return a.then((function(a){var i=n+ ++o/t.length*(r-n);return e(i),a})),a})))}function jf(t,e){return n(this,void 0,void 0,(function(){var n,o,a,s,u,c,l,h,f;return r(this,(function(r){switch(r.label){case 0:return null==e&&(e={}),n=null==e.fetchFunc?i().platform.fetch:e.fetchFunc,o=t.map((function(t){return n(t,e.requestInit,{isBinary:!0})})),a=0,s=.5,null!=e.onProgress?[3,2]:[4,Promise.all(o)];case 1:return u=r.sent(),[3,4];case 2:return[4,Kf(o,e.onProgress,a,s)];case 3:u=r.sent(),r.label=4;case 4:return c=u.map((function(t){return t.arrayBuffer()})),l=.5,h=1,null!=e.onProgress?[3,6]:[4,Promise.all(c)];case 5:return f=r.sent(),[3,8];case 6:return[4,Kf(c,e.onProgress,l,h)];case 7:f=r.sent(),r.label=8;case 8:return[2,f]}}))}))}function Xf(t){var e=this;return function(o,a,i){return void 0===a&&(a=""),n(e,void 0,void 0,(function(){var e,n,s,u,c,l,h,f,d,p;return r(this,(function(r){switch(r.label){case 0:if(e=o.map((function(){return!1})),n={},s=null!=i?i.map((function(){return!1})):[],u=[],o.forEach((function(t,r){var o=0;t.weights.forEach((function(t){var a="quantization"in t?t.quantization.dtype:t.dtype,c=sf[a]*k(t.shape),l=function(){e[r]=!0,null==n[r]&&(n[r]=[]),n[r].push({manifestEntry:t,groupOffset:o,sizeBytes:c})};null!=i?i.forEach((function(e,n){e===t.name&&(l(),s[n]=!0)})):l(),u.push(t.name),o+=c}))})),!s.every((function(t){return t})))throw c=i.filter((function(t,e){return!s[e]})),new Error("Could not find weights in manifest with names: "+c.join(", ")+". \nManifest JSON has weights with names: "+u.join(", ")+".");return l=e.reduce((function(t,e,n){return e&&t.push(n),t}),[]),h=[],l.forEach((function(t){o[t].paths.forEach((function(t){var e=a+(a.endsWith("/")?"":"/")+t;h.push(e)}))})),[4,t(h)];case 1:return f=r.sent(),d={},p=0,l.forEach((function(t){for(var e=o[t].paths.length,r=0,a=0;a<e;a++)r+=f[p+a].byteLength;for(var i=new ArrayBuffer(r),s=new Uint8Array(i),u=0,c=0;c<e;c++){var l=new Uint8Array(f[p+c]);s.set(l,u),u+=l.byteLength}n[t].forEach((function(t){var e=cf(i.slice(t.groupOffset,t.groupOffset+t.sizeBytes),[t.manifestEntry]);for(var n in e)d[n]=e[n]})),p+=e})),[2,d]}}))}))}}mf.registerSaveRouter((function(t){return i().getBool("IS_BROWSER")&&!Array.isArray(t)&&t.startsWith(Hf.URL_SCHEME)?function(t){void 0===t&&(t="model");return new Hf(t)}(t.slice(Hf.URL_SCHEME.length)):null}));var Yf=function(){function t(t,e){if(this.DEFAULT_METHOD="POST",null==e&&(e={}),this.weightPathPrefix=e.weightPathPrefix,this.onProgress=e.onProgress,null!=e.fetchFunc?(C("function"==typeof e.fetchFunc,(function(){return"Must pass a function that matches the signature of `fetch` (see https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API)"})),this.fetch=e.fetchFunc):this.fetch=i().platform.fetch,C(null!=t&&t.length>0,(function(){return"URL path for http must not be null, undefined or empty."})),Array.isArray(t)&&C(2===t.length,(function(){return"URL paths for http must have a length of 2, (actual length is "+t.length+")."})),this.path=t,null!=e.requestInit&&null!=e.requestInit.body)throw new Error("requestInit is expected to have no pre-existing body, but has one.");this.requestInit=e.requestInit||{}}return t.prototype.save=function(t){return n(this,void 0,void 0,(function(){var e,n,o,a;return r(this,(function(r){switch(r.label){case 0:if(t.modelTopology instanceof ArrayBuffer)throw new Error("BrowserHTTPRequest.save() does not support saving model topology in binary formats yet.");return(e=Object.assign({method:this.DEFAULT_METHOD},this.requestInit)).body=new FormData,n=[{paths:["./model.weights.bin"],weights:t.weightSpecs}],o={modelTopology:t.modelTopology,format:t.format,generatedBy:t.generatedBy,convertedBy:t.convertedBy,userDefinedMetadata:t.userDefinedMetadata,weightsManifest:n},e.body.append("model.json",new Blob([JSON.stringify(o)],{type:"application/json"}),"model.json"),null!=t.weightData&&e.body.append("model.weights.bin",new Blob([t.weightData],{type:"application/octet-stream"}),"model.weights.bin"),[4,this.fetch(this.path,e)];case 1:if((a=r.sent()).ok)return[2,{modelArtifactsInfo:vf(t),responses:[a]}];throw new Error("BrowserHTTPRequest.save() failed due to HTTP response status "+a.status+".")}}))}))},t.prototype.load=function(){return n(this,void 0,void 0,(function(){var t,e,n,o,a,i,s,u,c,l,h,f;return r(this,(function(r){switch(r.label){case 0:return[4,this.fetch(this.path,this.requestInit)];case 1:if(!(t=r.sent()).ok)throw new Error("Request to "+this.path+" failed with status code "+t.status+". Please verify this URL points to the model JSON of the model to load.");r.label=2;case 2:return r.trys.push([2,4,,5]),[4,t.json()];case 3:return e=r.sent(),[3,5];case 4:throw r.sent(),n="Failed to parse model JSON of response from "+this.path+".",this.path.endsWith(".pb")?n+=" Your path contains a .pb file extension. Support for .pb models have been removed in TensorFlow.js 1.0 in favor of .json models. You can re-convert your Python TensorFlow model using the TensorFlow.js 1.0 conversion scripts or you can convert your.pb models with the 'pb2json'NPM script in the tensorflow/tfjs-converter repository.":n+=" Please make sure the server is serving valid JSON for this request.",new Error(n);case 5:if(o=e.modelTopology,a=e.weightsManifest,i=e.generatedBy,s=e.convertedBy,u=e.format,c=e.userDefinedMetadata,null==o&&null==a)throw new Error("The JSON from HTTP path "+this.path+" contains neither model topology or manifest for weights.");return null==a?[3,7]:[4,this.loadWeights(a)];case 6:f=r.sent(),l=f[0],h=f[1],r.label=7;case 7:return[2,{modelTopology:o,weightSpecs:l,weightData:h,userDefinedMetadata:c,generatedBy:i,convertedBy:s,format:u}]}}))}))},t.prototype.loadWeights=function(t){return n(this,void 0,void 0,(function(){var e,n,o,a,i,s,u,c,l,h,f;return r(this,(function(r){switch(r.label){case 0:for(e=Array.isArray(this.path)?this.path[1]:this.path,n=function(t){var e=t.lastIndexOf("/"),n=t.lastIndexOf("?"),r=t.substring(0,e),o=n>e?t.substring(n):"";return[r+"/",o]}(e),o=n[0],a=n[1],i=this.weightPathPrefix||o,s=[],u=0,c=t;u<c.length;u++)l=c[u],s.push.apply(s,l.weights);return h=[],t.forEach((function(t){t.paths.forEach((function(t){h.push(i+t+a)}))})),[4,jf(h,{requestInit:this.requestInit,fetchFunc:this.fetch,onProgress:this.onProgress})];case 1:return f=r.sent(),[2,[s,df(f)]]}}))}))},t.URL_SCHEME_REGEX=/^https?:\/\//,t}();function $f(t){return null!=t.match(Yf.URL_SCHEME_REGEX)}var Qf=function(t,e){if("undefined"==typeof fetch)return null;return(Array.isArray(t)?t.every((function(t){return $f(t)})):$f(t))?Jf(t,{onProgress:e}):null};function Jf(t,e){return new Yf(t,e)}mf.registerSaveRouter(Qf),mf.registerLoadRouter(Qf);var Zf=function(){function t(t){this.modelArtifacts=t}return t.prototype.load=function(){return n(this,void 0,void 0,(function(){return r(this,(function(t){return[2,this.modelArtifacts]}))}))},t}(),td=function(){function t(t){this.saveHandler=t}return t.prototype.save=function(t){return n(this,void 0,void 0,(function(){return r(this,(function(e){return[2,this.saveHandler(t)]}))}))},t}();var ed=Object.freeze({browserFiles:function(t){return new qf(t)},browserHTTPRequest:function(t,e){return Jf(t,e)},concatenateArrayBuffers:df,decodeWeights:cf,encodeWeights:function(t,e){return n(this,void 0,void 0,(function(){var o,a,i,s,u,c=this;return r(this,(function(l){switch(l.label){case 0:for(o=[],a=[],i=Array.isArray(t)?t.map((function(t){return t.name})):Object.keys(t),s=function(s){var u=i[s],l=Array.isArray(t)?t[s].tensor:t[u];if("float32"!==l.dtype&&"int32"!==l.dtype&&"bool"!==l.dtype&&"string"!==l.dtype)throw new Error("Unsupported dtype in weight '"+u+"': "+l.dtype);var h={name:u,shape:l.shape,dtype:l.dtype};if("string"===l.dtype){var f=new Promise((function(t){return n(c,void 0,void 0,(function(){var e,n,o,a,i,s,u;return r(this,(function(r){switch(r.label){case 0:return[4,l.bytes()];case 1:for(e=r.sent(),n=e.reduce((function(t,e){return t+e.length}),0)+uf*e.length,o=new Uint8Array(n),a=0,i=0;i<e.length;i++)s=e[i],u=new Uint8Array(new Uint32Array([s.length]).buffer),o.set(u,a),a+=uf,o.set(s,a),a+=s.length;return t(o),[2]}}))}))}));a.push(f)}else a.push(l.data());null!=e&&(h.group=e),o.push(h)},u=0;u<i.length;++u)s(u);return[4,Promise.all(a)];case 1:return[2,{data:lf(l.sent()),specs:o}]}}))}))},fromMemory:function(t,e,n,r){return 1===arguments.length?null!=t.modelTopology||null!=t.weightSpecs?new Zf(t):(console.warn("Please call tf.io.fromMemory() with only one argument. The argument should be of type ModelArtifacts. The multi-argument signature of tf.io.fromMemory() has been deprecated and will be removed in a future release."),new Zf({modelTopology:t})):(console.warn("Please call tf.io.fromMemory() with only one argument. The argument should be of type ModelArtifacts. The multi-argument signature of tf.io.fromMemory() has been deprecated and will be removed in a future release."),new Zf({modelTopology:t,weightSpecs:e,weightData:n,trainingConfig:r}))},getLoadHandlers:function(t,e){return mf.getLoadHandlers(t,e)},getModelArtifactsInfoForJSON:vf,getSaveHandlers:function(t){return mf.getSaveHandlers(t)},http:Jf,isHTTPScheme:$f,loadWeights:function(t,e,o,a){return void 0===e&&(e=""),n(this,void 0,void 0,(function(){return r(this,(function(n){return[2,Xf((function(t){return jf(t,{requestInit:a})}))(t,e,o)]}))}))},registerLoadRouter:function(t){return mf.registerLoadRouter(t)},registerSaveRouter:function(t){return mf.registerSaveRouter(t)},weightsLoaderFactory:Xf,withSaveHandler:function(t){return new td(t)},copyModel:function(t,e){return n(this,void 0,void 0,(function(){return r(this,(function(n){return!1,[2,bf(t,e,!1)]}))}))},listModels:function(){return n(this,void 0,void 0,(function(){var t,e,n,o,a,i,s;return r(this,(function(r){switch(r.label){case 0:t=yf.getSchemes(),e={},n=0,o=t,r.label=1;case 1:return n<o.length?(a=o[n],[4,yf.getManager(a).listModels()]):[3,4];case 2:for(s in i=r.sent())e[a+gf+s]=i[s];r.label=3;case 3:return n++,[3,1];case 4:return[2,e]}}))}))},moveModel:function(t,e){return n(this,void 0,void 0,(function(){return r(this,(function(n){return!0,[2,bf(t,e,!0)]}))}))},removeModel:function(t){return n(this,void 0,void 0,(function(){var e;return r(this,(function(n){return e=xf(t),[2,yf.getManager(e.scheme).removeModel(e.path)]}))}))}});var nd,rd=An({confusionMatrix_:function(t,e,n){var r=mn(t,"labels","confusionMatrix"),o=mn(e,"predictions","confusionMatrix");C(null==n||n>0&&Number.isInteger(n),(function(){return"If provided, numClasses must be a positive integer, but got "+n})),C(1===r.rank,(function(){return"Expected the rank of labels to be 1, but got "+r.rank})),C(1===o.rank,(function(){return"Expected the rank of predictions to be 1, but got "+o.rank})),C(r.shape[0]===o.shape[0],(function(){return"Mismatch in the number of examples: "+r.shape[0]+" vs. "+o.shape[0]+". Labels and predictions should have the same number of elements."})),C(n>0&&Number.isInteger(n),(function(){return"numClasses is required to be a positive integer, but got "+n}));var a=Rr(r.asType("int32"),n),i=Rr(o.asType("int32"),n);return a.transpose().matMul(i).asType("int32")}}),od=Object.freeze({confusionMatrix:rd});var ad=An({fromPixels_:function(t,e){if(void 0===e&&(e=3),e>4)throw new Error("Cannot construct Tensor with more than 4 channels from pixels.");if(null==t)throw new Error("pixels passed to tf.browser.fromPixels() can not be null");var n=!1,r=!1,o=!1,a=!1,i=!1;if(t.data instanceof Uint8Array)n=!0;else if("undefined"!=typeof ImageData&&t instanceof ImageData)r=!0;else if("undefined"!=typeof HTMLVideoElement&&t instanceof HTMLVideoElement)o=!0;else if("undefined"!=typeof HTMLImageElement&&t instanceof HTMLImageElement)a=!0;else{if(null==t.getContext)throw new Error("pixels passed to tf.browser.fromPixels() must be either an HTMLVideoElement, HTMLImageElement, HTMLCanvasElement, ImageData in browser, or OffscreenCanvas, ImageData in webworker or {data: Uint32Array, width: number, height: number}, but was "+t.constructor.name);i=!0}if(o){if(o&&t.readyState<2)throw new Error("The video element has not loaded data yet. Please wait for `loadeddata` event on the <video> element.")}if(null!=l("FromPixels",Lt.backendName))return Lt.runKernel("FromPixels",{pixels:t},{numChannels:e});var s,u,c=o?[t.videoWidth,t.videoHeight]:[t.width,t.height],h=c[0],f=c[1];if(i?s=t.getContext("2d").getImageData(0,0,h,f).data:r||n?s=t.data:(a||o)&&(null==nd&&(nd=document.createElement("canvas").getContext("2d")),nd.canvas.width=h,nd.canvas.height=f,nd.drawImage(t,0,0,h,f),s=nd.getImageData(0,0,h,f).data),4===e)u=new Int32Array(s);else{var d=h*f;u=new Int32Array(d*e);for(var p=0;p<d;p++)for(var v=0;v<e;++v)u[p*e+v]=s[4*p+v]}return Pn(u,[f,h,e],"int32")}}),id=Object.freeze({toPixels:function(t,e){return n(this,void 0,void 0,(function(){var n,o,a,i,s,u,c,l,h,f,d,p,v,m,g,y,x,b,w,C,E,R,I;return r(this,(function(r){switch(r.label){case 0:if(n=mn(t,"img","toPixels"),t instanceof wt||(n=n.toInt()),2!==n.rank&&3!==n.rank)throw new Error("toPixels only supports rank 2 or 3 tensors, got rank "+n.rank+".");if(o=n.shape.slice(0,2),a=o[0],i=o[1],(s=2===n.rank?1:n.shape[2])>4||2===s)throw new Error("toPixels only supports depth of size 1, 3 or 4 but got "+s);return[4,n.data()];case 1:return u=r.sent(),c=n.min(),l=n.max(),[4,Promise.all([c.data(),l.data()])];case 2:if(h=r.sent(),f=h[0],d=h[1],p=f[0],v=d[0],c.dispose(),l.dispose(),"float32"===n.dtype){if(p<0||v>1)throw new Error("Tensor values for a float32 Tensor must be in the range [0 - 1] but got range ["+p+" - "+v+"].")}else{if("int32"!==n.dtype)throw new Error("Unsupported type for toPixels: "+n.dtype+". Please use float32 or int32 tensors.");if(p<0||v>255)throw new Error("Tensor values for a int32 Tensor must be in the range [0 - 255] but got range ["+p+" - "+v+"].")}for(m="float32"===n.dtype?255:1,g=new Uint8ClampedArray(i*a*4),y=0;y<a*i;++y)x=void 0,b=void 0,w=void 0,C=void 0,1===s?(x=u[y]*m,b=u[y]*m,w=u[y]*m,C=255):3===s?(x=u[3*y]*m,b=u[3*y+1]*m,w=u[3*y+2]*m,C=255):4===s&&(x=u[4*y]*m,b=u[4*y+1]*m,w=u[4*y+2]*m,C=u[4*y+3]*m),g[(E=4*y)+0]=Math.round(x),g[E+1]=Math.round(b),g[E+2]=Math.round(w),g[E+3]=Math.round(C);return null!=e&&(e.width=i,e.height=a,R=e.getContext("2d"),I=new ImageData(g,i,a),R.putImageData(I,0,0)),n!==t&&n.dispose(),[2,g]}}))}))},fromPixels:ad}),sd=function(){function t(){}return t.prototype.getClassName=function(){return this.constructor.className},t.fromConfig=function(t,e){return new t(e)},t}(),ud=function(){function t(){this.classNameMap={}}return t.getMap=function(){return null==t.instance&&(t.instance=new t),t.instance},t.register=function(e){t.getMap().classNameMap[e.className]=[e,e.fromConfig]},t}();function cd(t){C(null!=t.className,(function(){return"Class being registered does not have the static className property defined."})),C("string"==typeof t.className,(function(){return"className is required to be a string, but got type "+typeof t.className})),C(t.className.length>0,(function(){return"Class being registered has an empty-string as its className, which is disallowed."})),ud.register(t)}var ld=Object.freeze({Serializable:sd,SerializationMap:ud,registerClass:cd}),hd=.001,fd=.1;function dd(){return 32===Lt.backend.floatPrecision()?hd:fd}function pd(t,e,n){var r=!0;if((V(t)||V(e))&&(r=!1),V(t)&&V(e)&&(r=!0),r){var o=t.constructor.name,a=e.constructor.name;if(o!==a)throw new Error("Arrays are of different type. Actual: "+o+". Expected: "+a)}if(Array.isArray(t)&&Array.isArray(e)){var i=pn(t),s=pn(e);if(!S(i,s))throw new Error("Arrays have different shapes. Actual: ["+i+"]. Expected: ["+s+"]")}var u=V(t)?t:I(t),c=V(e)?e:I(e);if(u.length!==c.length)throw new Error("Arrays have different lengths actual: "+u.length+" vs expected: "+c.length+".\nActual: "+u+".\nExpected: "+c+".");for(var l=0;l<c.length;++l){var h=u[l],f=c[l];if(!n(h,f))throw new Error("Arrays differ: actual["+l+"] = "+h+", expected["+l+"] = "+f+".\nActual: "+u+".\nExpected: "+c+".")}}function vd(t,e,n){return!isFinite(t)&&!isFinite(e)||!(isNaN(t)||isNaN(e)||Math.abs(t-e)>n)}var md=Object.freeze({TEST_EPSILON_FLOAT16:fd,expectArraysClose:function(t,e,n){return null==n&&(n=dd()),pd(t,e,(function(t,e){return vd(t,e,n)}))},testEpsilon:dd,expectPromiseToFail:function(t,e){t().then((function(){return e.fail()}),(function(){return e()}))},expectArraysEqual:function(t,e){var n="string"==typeof e||"number"==typeof e||"boolean"==typeof e?[e]:e;return H(t)||H(t[0])||H(e)||H(e[0])?pd(t,n,(function(t,e){return t==e})):pd(t,e,(function(t,e){return vd(t,e,0)}))},expectNumbersClose:function(t,e,n){if(null==n&&(n=dd()),!vd(t,e,n))throw new Error("Numbers differ: actual === "+t+", expected === "+e)},expectValuesInRange:function(t,e,n){for(var r=0;r<t.length;r++)if(t[r]<e||t[r]>n)throw new Error("Value out of range:"+t[r]+" low: "+e+", high: "+n)},expectArrayBuffersEqual:function(t,e){expect(new Float32Array(t)).toEqual(new Float32Array(e))}}),gd="1.7.0";var yd=Object.freeze({gpgpu_util:Mi,webgl_util:Ge,forceHalfFloat:function(){i().set("WEBGL_FORCE_F16_TEXTURES",!0)},MathBackendWebGL:Zs,setWebGLContext:Kt,GPGPUContext:Bi}),xd=function(t){function o(){return null!==t&&t.apply(this,arguments)||this}return e(o,t),o.prototype.minimize=function(t,e,n){void 0===e&&(e=!1);var r=this.computeGradients(t,n),o=r.value,a=r.grads;if(null!=n){var i=n.map((function(t){return{name:t.name,tensor:a[t.name]}}));this.applyGradients(i)}else this.applyGradients(a);return tn(a),e?o:(o.dispose(),null)},Object.defineProperty(o.prototype,"iterations",{get:function(){return null==this.iterations_&&(this.iterations_=0),this.iterations_},enumerable:!0,configurable:!0}),o.prototype.incrementIterations=function(){this.iterations_=this.iterations+1},o.prototype.computeGradients=function(t,e){return po(t,e)},o.prototype.dispose=function(){null!=this.iterations_&&tn(this.iterations_)},o.prototype.saveIterations=function(){return n(this,void 0,void 0,(function(){return r(this,(function(t){return null==this.iterations_&&(this.iterations_=0),[2,{name:"iter",tensor:On(this.iterations_,"int32")}]}))}))},o.prototype.getWeights=function(){return n(this,void 0,void 0,(function(){return r(this,(function(t){throw new Error("getWeights() is not implemented for this optimizer yet.")}))}))},o.prototype.setWeights=function(t){return n(this,void 0,void 0,(function(){return r(this,(function(t){throw new Error("setWeights() is not implemented for this optimizer class "+this.getClassName())}))}))},o.prototype.extractIterations=function(t){return n(this,void 0,void 0,(function(){var e;return r(this,(function(n){switch(n.label){case 0:return e=this,[4,t[0].tensor.data()];case 1:return e.iterations_=n.sent()[0],[2,t.slice(1)]}}))}))},o}(sd);Object.defineProperty(xd,Symbol.hasInstance,{value:function(t){return null!=t.minimize&&null!=t.computeGradients&&null!=t.applyGradients}});var bd=function(t){function o(e,n,r){void 0===r&&(r=null);var o=t.call(this)||this;return o.learningRate=e,o.rho=n,o.epsilon=r,o.accumulatedGrads=[],o.accumulatedUpdates=[],null==r&&(o.epsilon=Lt.backend.epsilon()),o}return e(o,t),o.prototype.applyGradients=function(t){var e=this;(Array.isArray(t)?t.map((function(t){return t.name})):Object.keys(t)).forEach((function(n,r){var o=Lt.registeredVariables[n];null==e.accumulatedGrads[r]&&(e.accumulatedGrads[r]={originalName:n+"/accum_grad",variable:Ze((function(){return Xn(o).variable(!1)}))}),null==e.accumulatedUpdates[r]&&(e.accumulatedUpdates[r]={originalName:n+"/accum_var",variable:Ze((function(){return Xn(o).variable(!1)}))});var a=Array.isArray(t)?t[r].tensor:t[n];if(null!=a){var i=e.accumulatedGrads[r].variable,s=e.accumulatedUpdates[r].variable;Ze((function(){var t=i.mul(e.rho).add(a.square().mul(1-e.rho)),n=s.add(e.epsilon).sqrt().div(i.add(e.epsilon).sqrt()).mul(a),r=s.mul(e.rho).add(n.square().mul(1-e.rho));i.assign(t),s.assign(r);var u=n.mul(-e.learningRate).add(o);o.assign(u)}))}})),this.incrementIterations()},o.prototype.dispose=function(){null!=this.accumulatedUpdates&&(tn(this.accumulatedGrads.map((function(t){return t.variable}))),tn(this.accumulatedUpdates.map((function(t){return t.variable}))))},o.prototype.getWeights=function(){return n(this,void 0,void 0,(function(){var t;return r(this,(function(e){switch(e.label){case 0:return t=this.accumulatedGrads.concat(this.accumulatedUpdates),[4,this.saveIterations()];case 1:return[2,[e.sent()].concat(t.map((function(t){return{name:t.originalName,tensor:t.variable}})))]}}))}))},o.prototype.setWeights=function(t){return n(this,void 0,void 0,(function(){var e;return r(this,(function(n){switch(n.label){case 0:return[4,this.extractIterations(t)];case 1:return t=n.sent(),e=t.length/2,!1,this.accumulatedGrads=t.slice(0,e).map((function(t){return{originalName:t.name,variable:t.tensor.variable(!1)}})),this.accumulatedUpdates=t.slice(e,2*e).map((function(t){return{originalName:t.name,variable:t.tensor.variable(!1)}})),[2]}}))}))},o.prototype.getConfig=function(){return{learningRate:this.learningRate,rho:this.rho,epsilon:this.epsilon}},o.fromConfig=function(t,e){return new t(e.learningRate,e.rho,e.epsilon)},o.className="Adadelta",o}(xd);cd(bd);var wd=function(t){function o(e,n){void 0===n&&(n=.1);var r=t.call(this)||this;return r.learningRate=e,r.initialAccumulatorValue=n,r.accumulatedGrads=[],r}return e(o,t),o.prototype.applyGradients=function(t){var e=this;(Array.isArray(t)?t.map((function(t){return t.name})):Object.keys(t)).forEach((function(n,r){var o=Lt.registeredVariables[n];if(null==e.accumulatedGrads[r]){e.accumulatedGrads[r]={originalName:n+"/accumulator",variable:Ze((function(){return Hn(o.shape,e.initialAccumulatorValue).variable(!1)}))}}var a=Array.isArray(t)?t[r].tensor:t[n];if(null!=a){var i=e.accumulatedGrads[r].variable;Ze((function(){var t=i.add(a.square());i.assign(t);var n=a.div(t.add(Lt.backend.epsilon()).sqrt()).mul(-e.learningRate).add(o);o.assign(n)}))}})),this.incrementIterations()},o.prototype.dispose=function(){null!=this.accumulatedGrads&&tn(this.accumulatedGrads.map((function(t){return t.variable})))},o.prototype.getWeights=function(){return n(this,void 0,void 0,(function(){return r(this,(function(t){switch(t.label){case 0:return[4,this.saveIterations()];case 1:return[2,[t.sent()].concat(this.accumulatedGrads.map((function(t){return{name:t.originalName,tensor:t.variable}})))]}}))}))},o.prototype.setWeights=function(t){return n(this,void 0,void 0,(function(){return r(this,(function(e){switch(e.label){case 0:return[4,this.extractIterations(t)];case 1:return t=e.sent(),!1,this.accumulatedGrads=t.map((function(t){return{originalName:t.name,variable:t.tensor.variable(!1)}})),[2]}}))}))},o.prototype.getConfig=function(){return{learningRate:this.learningRate,initialAccumulatorValue:this.initialAccumulatorValue}},o.fromConfig=function(t,e){return new t(e.learningRate,e.initialAccumulatorValue)},o.className="Adagrad",o}(xd);cd(wd);var Cd=function(t){function o(e,n,r,o){void 0===o&&(o=null);var a=t.call(this)||this;return a.learningRate=e,a.beta1=n,a.beta2=r,a.epsilon=o,a.accumulatedFirstMoment=[],a.accumulatedSecondMoment=[],Ze((function(){a.accBeta1=On(n).variable(),a.accBeta2=On(r).variable()})),null==o&&(a.epsilon=Lt.backend.epsilon()),a}return e(o,t),o.prototype.applyGradients=function(t){var e=this,n=Array.isArray(t)?t.map((function(t){return t.name})):Object.keys(t);Ze((function(){var r=Cc(1,e.accBeta1),o=Cc(1,e.accBeta2);n.forEach((function(n,a){var i=Lt.registeredVariables[n];null==e.accumulatedFirstMoment[a]&&(e.accumulatedFirstMoment[a]={originalName:n+"/m",variable:Ze((function(){return Xn(i).variable(!1)}))}),null==e.accumulatedSecondMoment[a]&&(e.accumulatedSecondMoment[a]={originalName:n+"/v",variable:Ze((function(){return Xn(i).variable(!1)}))});var s=Array.isArray(t)?t[a].tensor:t[n];if(null!=s){var u=e.accumulatedFirstMoment[a].variable,c=e.accumulatedSecondMoment[a].variable,l=u.mul(e.beta1).add(s.mul(1-e.beta1)),h=c.mul(e.beta2).add(s.square().mul(1-e.beta2)),f=l.div(r),d=h.div(o);u.assign(l),c.assign(h);var p=f.div(d.sqrt().add(e.epsilon)).mul(-e.learningRate).add(i);i.assign(p)}})),e.accBeta1.assign(e.accBeta1.mul(e.beta1)),e.accBeta2.assign(e.accBeta2.mul(e.beta2))})),this.incrementIterations()},o.prototype.dispose=function(){this.accBeta1.dispose(),this.accBeta2.dispose(),null!=this.accumulatedFirstMoment&&tn(this.accumulatedFirstMoment.map((function(t){return t.variable}))),null!=this.accumulatedSecondMoment&&tn(this.accumulatedSecondMoment.map((function(t){return t.variable})))},o.prototype.getWeights=function(){return n(this,void 0,void 0,(function(){var t;return r(this,(function(e){switch(e.label){case 0:return t=this.accumulatedFirstMoment.concat(this.accumulatedSecondMoment),[4,this.saveIterations()];case 1:return[2,[e.sent()].concat(t.map((function(t){return{name:t.originalName,tensor:t.variable}})))]}}))}))},o.prototype.setWeights=function(t){return n(this,void 0,void 0,(function(){var e,n=this;return r(this,(function(r){switch(r.label){case 0:return[4,this.extractIterations(t)];case 1:return t=r.sent(),Ze((function(){n.accBeta1.assign(xc(n.beta1,n.iterations_+1)),n.accBeta2.assign(xc(n.beta2,n.iterations_+1))})),e=t.length/2,!1,this.accumulatedFirstMoment=t.slice(0,e).map((function(t){return{originalName:t.name,variable:t.tensor.variable(!1)}})),this.accumulatedSecondMoment=t.slice(e,2*e).map((function(t){return{originalName:t.name,variable:t.tensor.variable(!1)}})),[2]}}))}))},o.prototype.getConfig=function(){return{learningRate:this.learningRate,beta1:this.beta1,beta2:this.beta2,epsilon:this.epsilon}},o.fromConfig=function(t,e){return new t(e.learningRate,e.beta1,e.beta2,e.epsilon)},o.className="Adam",o}(xd);cd(Cd);var Ed=function(t){function o(e,n,r,o,a){void 0===o&&(o=null),void 0===a&&(a=0);var i=t.call(this)||this;return i.learningRate=e,i.beta1=n,i.beta2=r,i.epsilon=o,i.decay=a,i.accumulatedFirstMoment=[],i.accumulatedWeightedInfNorm=[],Ze((function(){i.iteration=On(0).variable(),i.accBeta1=On(n).variable()})),null==o&&(i.epsilon=Lt.backend.epsilon()),i}return e(o,t),o.prototype.applyGradients=function(t){var e=this,n=Array.isArray(t)?t.map((function(t){return t.name})):Object.keys(t);Ze((function(){var r=Cc(1,e.accBeta1),o=sc(-e.learningRate,e.iteration.mul(e.decay).add(1));n.forEach((function(n,a){var i=Lt.registeredVariables[n];null==e.accumulatedFirstMoment[a]&&(e.accumulatedFirstMoment[a]={originalName:n+"/m",variable:Xn(i).variable(!1)}),null==e.accumulatedWeightedInfNorm[a]&&(e.accumulatedWeightedInfNorm[a]={originalName:n+"/v",variable:Xn(i).variable(!1)});var s=Array.isArray(t)?t[a].tensor:t[n];if(null!=s){var u=e.accumulatedFirstMoment[a].variable,c=e.accumulatedWeightedInfNorm[a].variable,l=u.mul(e.beta1).add(s.mul(1-e.beta1)),h=c.mul(e.beta2),f=s.abs(),d=h.maximum(f);u.assign(l),c.assign(d);var p=o.div(r).mul(l.div(d.add(e.epsilon))).add(i);i.assign(p)}})),e.iteration.assign(e.iteration.add(1)),e.accBeta1.assign(e.accBeta1.mul(e.beta1))})),this.incrementIterations()},o.prototype.dispose=function(){this.accBeta1.dispose(),this.iteration.dispose(),null!=this.accumulatedFirstMoment&&tn(this.accumulatedFirstMoment.map((function(t){return t.variable}))),null!=this.accumulatedWeightedInfNorm&&tn(this.accumulatedWeightedInfNorm.map((function(t){return t.variable})))},o.prototype.getWeights=function(){return n(this,void 0,void 0,(function(){return r(this,(function(t){throw new Error("getWeights() is not implemented for Adamax yet.")}))}))},o.prototype.setWeights=function(t){return n(this,void 0,void 0,(function(){return r(this,(function(t){throw new Error("setWeights() is not implemented for Adamax yet.")}))}))},o.prototype.getConfig=function(){return{learningRate:this.learningRate,beta1:this.beta1,beta2:this.beta2,epsilon:this.epsilon,decay:this.decay}},o.fromConfig=function(t,e){return new t(e.learningRate,e.beta1,e.beta2,e.epsilon,e.decay)},o.className="Adamax",o}(xd);cd(Ed);var Rd=function(t){function o(e){var n=t.call(this)||this;return n.learningRate=e,n.setLearningRate(e),n}return e(o,t),o.prototype.applyGradients=function(t){var e=this;(Array.isArray(t)?t.map((function(t){return t.name})):Object.keys(t)).forEach((function(n,r){var o=Array.isArray(t)?t[r].tensor:t[n];if(null!=o){var a=Lt.registeredVariables[n];Ze((function(){var t=e.c.mul(o).add(a);a.assign(t)}))}})),this.incrementIterations()},o.prototype.setLearningRate=function(t){this.learningRate=t,null!=this.c&&this.c.dispose(),this.c=en(On(-t))},o.prototype.dispose=function(){this.c.dispose()},o.prototype.getWeights=function(){return n(this,void 0,void 0,(function(){return r(this,(function(t){switch(t.label){case 0:return[4,this.saveIterations()];case 1:return[2,[t.sent()]]}}))}))},o.prototype.setWeights=function(t){return n(this,void 0,void 0,(function(){return r(this,(function(e){switch(e.label){case 0:return[4,this.extractIterations(t)];case 1:if(0!==(t=e.sent()).length)throw new Error("SGD optimizer does not have settable weights.");return[2]}}))}))},o.prototype.getConfig=function(){return{learningRate:this.learningRate}},o.fromConfig=function(t,e){return new t(e.learningRate)},o.className="SGD",o}(xd);cd(Rd);var Id=function(t){function o(e,n,r){void 0===r&&(r=!1);var o=t.call(this,e)||this;return o.learningRate=e,o.momentum=n,o.useNesterov=r,o.accumulations=[],o.m=On(o.momentum),o}return e(o,t),o.prototype.applyGradients=function(t){var e=this;(Array.isArray(t)?t.map((function(t){return t.name})):Object.keys(t)).forEach((function(n,r){var o=Lt.registeredVariables[n];if(null==e.accumulations[r]){e.accumulations[r]={originalName:n+"/momentum",variable:Ze((function(){return Xn(o).variable(!1)}))}}var a=e.accumulations[r].variable,i=Array.isArray(t)?t[r].tensor:t[n];null!=i&&Ze((function(){var t,n=e.m.mul(a).add(i);t=e.useNesterov?e.c.mul(i.add(n.mul(e.m))).add(o):e.c.mul(n).add(o),a.assign(n),o.assign(t)}))})),this.incrementIterations()},o.prototype.dispose=function(){this.m.dispose(),null!=this.accumulations&&tn(this.accumulations.map((function(t){return t.variable})))},o.prototype.setMomentum=function(t){this.momentum=t},o.prototype.getWeights=function(){return n(this,void 0,void 0,(function(){return r(this,(function(t){switch(t.label){case 0:return[4,this.saveIterations()];case 1:return[2,[t.sent()].concat(this.accumulations.map((function(t){return{name:t.originalName,tensor:t.variable}})))]}}))}))},o.prototype.setWeights=function(t){return n(this,void 0,void 0,(function(){return r(this,(function(e){switch(e.label){case 0:return[4,this.extractIterations(t)];case 1:return t=e.sent(),!1,this.accumulations=t.map((function(t){return{originalName:t.name,variable:t.tensor.variable(!1)}})),[2]}}))}))},o.prototype.getConfig=function(){return{learningRate:this.learningRate,momentum:this.momentum,useNesterov:this.useNesterov}},o.fromConfig=function(t,e){return new t(e.learningRate,e.momentum,e.useNesterov)},o.className="Momentum",o}(Rd);cd(Id);var kd=function(t){function o(e,n,r,o,a){void 0===n&&(n=.9),void 0===r&&(r=0),void 0===o&&(o=null),void 0===a&&(a=!1);var i=t.call(this)||this;if(i.learningRate=e,i.decay=n,i.momentum=r,i.epsilon=o,i.accumulatedMeanSquares=[],i.accumulatedMoments=[],i.accumulatedMeanGrads=[],i.centered=a,null==o&&(i.epsilon=Lt.backend.epsilon()),null==e)throw new Error("learningRate for RMSPropOptimizer must be defined.");return i}return e(o,t),o.prototype.applyGradients=function(t){var e=this;(Array.isArray(t)?t.map((function(t){return t.name})):Object.keys(t)).forEach((function(n,r){var o=Lt.registeredVariables[n];null==e.accumulatedMeanSquares[r]&&(e.accumulatedMeanSquares[r]={originalName:n+"/rms",variable:Ze((function(){return Xn(o).variable(!1)}))}),null==e.accumulatedMoments[r]&&(e.accumulatedMoments[r]={originalName:n+"/momentum",variable:Ze((function(){return Xn(o).variable(!1)}))}),null==e.accumulatedMeanGrads[r]&&e.centered&&(e.accumulatedMeanGrads[r]={originalName:n+"/mg",variable:Ze((function(){return Xn(o).variable(!1)}))});var a=Array.isArray(t)?t[r].tensor:t[n];if(null!=a){var i=e.accumulatedMeanSquares[r].variable,s=e.accumulatedMoments[r].variable;Ze((function(){var t=i.mul(e.decay).add(a.square().mul(1-e.decay));if(e.centered){var n=e.accumulatedMeanGrads[r].variable,u=n.mul(e.decay).add(a.mul(1-e.decay)),c=s.mul(e.momentum).add(a.mul(e.learningRate).div(t.sub(u.square().add(e.epsilon)).sqrt()));i.assign(t),n.assign(u),s.assign(c);var l=o.sub(c);o.assign(l)}else{var h=i.mul(e.decay).add(a.square().mul(1-e.decay));c=s.mul(e.momentum).add(a.mul(e.learningRate).div(h.add(e.epsilon).sqrt()));i.assign(h),s.assign(c);l=o.sub(c);o.assign(l)}}))}})),this.incrementIterations()},o.prototype.dispose=function(){null!=this.accumulatedMeanSquares&&tn(this.accumulatedMeanSquares.map((function(t){return t.variable}))),null!=this.accumulatedMeanGrads&&this.centered&&tn(this.accumulatedMeanGrads.map((function(t){return t.variable}))),null!=this.accumulatedMoments&&tn(this.accumulatedMoments.map((function(t){return t.variable})))},o.prototype.getWeights=function(){return n(this,void 0,void 0,(function(){var t;return r(this,(function(e){switch(e.label){case 0:return t=this.accumulatedMeanSquares.concat(this.accumulatedMoments),this.centered&&t.push.apply(t,this.accumulatedMeanGrads),[4,this.saveIterations()];case 1:return[2,[e.sent()].concat(t.map((function(t){return{name:t.originalName,tensor:t.variable}})))]}}))}))},o.prototype.setWeights=function(t){return n(this,void 0,void 0,(function(){var e;return r(this,(function(n){switch(n.label){case 0:return[4,this.extractIterations(t)];case 1:return t=n.sent(),e=this.centered?t.length/3:t.length/2,!1,this.accumulatedMeanSquares=t.slice(0,e).map((function(t){return{originalName:t.name,variable:t.tensor.variable(!1)}})),this.accumulatedMoments=t.slice(e,2*e).map((function(t){return{originalName:t.name,variable:t.tensor.variable(!1)}})),this.centered&&(this.accumulatedMeanGrads=t.slice(2*e,3*e).map((function(t){return{originalName:t.name,variable:t.tensor.variable(!1)}}))),[2]}}))}))},o.prototype.getConfig=function(){return{learningRate:this.learningRate,decay:this.decay,momentum:this.momentum,epsilon:this.epsilon,centered:this.centered}},o.fromConfig=function(t,e){return new t(e.learningRate,e.decay,e.momentum,e.epsilon,e.centered)},o.className="RMSProp",o}(xd);cd(kd);var Sd=function(){function t(){}return t.sgd=function(t){return new Rd(t)},t.momentum=function(t,e,n){return void 0===n&&(n=!1),new Id(t,e,n)},t.rmsprop=function(t,e,n,r,o){return void 0===e&&(e=.9),void 0===n&&(n=0),void 0===r&&(r=null),void 0===o&&(o=!1),new kd(t,e,n,r,o)},t.adam=function(t,e,n,r){return void 0===t&&(t=.001),void 0===e&&(e=.9),void 0===n&&(n=.999),void 0===r&&(r=null),new Cd(t,e,n,r)},t.adadelta=function(t,e,n){return void 0===t&&(t=.001),void 0===e&&(e=.95),void 0===n&&(n=null),new bd(t,e,n)},t.adamax=function(t,e,n,r,o){return void 0===t&&(t=.002),void 0===e&&(e=.9),void 0===n&&(n=.999),void 0===r&&(r=null),void 0===o&&(o=0),new Ed(t,e,n,r,o)},t.adagrad=function(t,e){return void 0===e&&(e=.1),new wd(t,e)},t}(),Ad={sgd:Sd.sgd,momentum:Sd.momentum,adadelta:Sd.adadelta,adagrad:Sd.adagrad,rmsprop:Sd.rmsprop,adamax:Sd.adamax,adam:Sd.adam},Dd="undefined"!=typeof requestAnimationFrame?requestAnimationFrame:"undefined"!=typeof setImmediate?setImmediate:function(t){return t()};function Td(){return new Promise((function(t){return Dd((function(){return t()}))}))}wt.prototype.squaredDifference=function(t){return nu(this,t)},xt=Gh;export{bd as AdadeltaOptimizer,wd as AdagradOptimizer,Cd as AdamOptimizer,Ed as AdamaxOptimizer,xo as DataStorage,s as ENV,o as Environment,bo as KernelBackend,Id as MomentumOptimizer,xd as Optimizer,kd as RMSPropOptimizer,Ct as Rank,ch as Reduction,Rd as SGDOptimizer,wt as Tensor,gt as TensorBuffer,St as Variable,ru as abs,ou as acos,au as acosh,rc as add,oc as addN,ac as addStrict,Cl as all,El as any,Rl as argMax,Il as argMin,iu as asin,su as asinh,uu as atan,ic as atan2,cu as atanh,fl as avgPool,vl as avgPool3d,hn as backend,Uo as backend_util,zl as basicLSTMCell,ju as batchNorm,Xu as batchNorm2d,Yu as batchNorm3d,$u as batchNorm4d,Ku as batchNormalization,Gu as batchNormalization2d,Hu as batchNormalization3d,qu as batchNormalization4d,vr as batchToSpaceND,Uc as booleanMaskAsync,mr as broadcastTo,id as browser,dr as buffer,gr as cast,lu as ceil,hu as clipByValue,yr as clone,Dn as complex,Yn as concat,$n as concat1d,Qn as concat2d,Jn as concat3d,Zn as concat4d,Hc as conv1d,qc as conv2d,Zc as conv2dTranspose,Kc as conv3d,tl as conv3dTranspose,fu as cos,du as cosh,xr as cumsum,vo as customGrad,Xe as deprecationWarn,br as depthToSpace,Yc as depthwiseConv2d,eh as diag,je as disableDeprecationWarnings,tn as dispose,Ye as disposeVariables,sc as div,uc as divNoNan,cc as divStrict,nl as dot,nh as dropout,_l as elu,Ke as enableDebugMode,qe as enableProdMode,$e as engine,i as env,Rc as equal,Ic as equalStrict,pu as erf,vu as exp,wr as expandDims,mu as expm1,Cr as eye,Xl as fft,Hn as fill,un as findBackend,cn as findBackendFactory,gu as floor,lc as floorDiv,ih as frame,zh as fused,Lc as gather,th as gatherND,Xr as gather_util,an as getBackend,h as getGradient,l as getKernel,f as getKernelsForBackend,co as grad,lo as grads,kc as greater,Sc as greaterEqual,Ac as greaterEqualStrict,Dc as greaterStrict,ah as hammingWindow,oh as hannWindow,Yl as ifft,Nn as imag,Oh as image,lh as inTopKAsync,ed as io,Ql as irfft,Du as isFinite,Au as isInf,Su as isNaN,en as keep,Ol as leakyRelu,Tc as less,Nc as lessEqual,Fc as lessEqualStrict,_c as lessStrict,Ih as linalg,qn as linspace,Ul as localResponseNormalization,yu as log,xu as log1p,bu as logSigmoid,yo as logSoftmax,kl as logSumExp,Qu as logicalAnd,Ju as logicalNot,Zu as logicalOr,tc as logicalXor,bh as losses,el as matMul,od as math,Sl as max,hl as maxPool,pl as maxPool3d,hc as maximum,fc as maximumStrict,Al as mean,Qe as memory,Dl as min,dc as minimum,pc as minimumStrict,vc as mod,mc as modStrict,Tl as moments,Hl as movingAverage,gc as mul,yc as mulStrict,Gl as multiRNNCell,Er as multinomial,wu as neg,Td as nextFrame,Vl as norm,Oc as notEqual,Mc as notEqualStrict,Rr as oneHot,zn as ones,jn as onesLike,An as op,rl as outerProduct,Ir as pad,kr as pad1d,Sr as pad2d,Ar as pad3d,Dr as pad4d,dl as pool,xc as pow,bc as powStrict,Ml as prelu,pr as print,Fl as prod,Je as profile,Tr as rand,Fr as randomGamma,Nr as randomNormal,_r as randomUniform,Kn as range,on as ready,Tn as real,Cu as reciprocal,ln as registerBackend,p as registerGradient,d as registerKernel,Bl as relu,Pl as relu6,sn as removeBackend,Or as reshape,ol as reverse,al as reverse1d,il as reverse2d,sl as reverse3d,ul as reverse4d,$l as rfft,Eu as round,Ru as rsqrt,On as scalar,jl as scatterND,to as scatter_util,Ll as selu,Jc as separableConv2d,ld as serialization,rn as setBackend,fn as setPlatform,Vr as setdiff1dAsync,Iu as sigmoid,ku as sign,uh as signal,Tu as sin,Nu as sinh,ml as slice,gl as slice1d,yl as slice2d,xl as slice3d,bl as slice4d,uo as slice_util,go as softmax,Fu as softplus,Mr as spaceToBatchND,Zl as sparseToDense,Jl as spectral,tr as split,_u as sqrt,tu as square,nu as squaredDifference,wc as squaredDifferenceStrict,Br as squeeze,Pr as stack,Ou as step,sh as stft,ql as stridedSlice,Cc as sub,Ec as subStrict,Nl as sum,Tt as sumOutType,Mu as tan,Bu as tanh,Fn as tensor,Mn as tensor1d,Bn as tensor2d,Pn as tensor3d,Ln as tensor4d,Wn as tensor5d,Un as tensor6d,Mt as tensor_util,md as test_util,Ze as tidy,Lr as tile,nn as time,Kl as topk,Ad as train,Wl as transpose,Wr as truncatedNormal,m as unregisterGradient,v as unregisterKernel,Wc as unsortedSegmentSum,Ur as unstack,st as util,ho as valueAndGrad,fo as valueAndGrads,Vn as variable,po as variableGrads,gd as version_core,yd as webgl,ec as where,nc as whereAsync,Gn as zeros,Xn as zerosLike};
|
