transformers.js/pr_1113/en/_app/immutable/nodes/2.ca0a80ee.js

import{s as nn,n as on,o as sn}from"../chunks/scheduler.0219f8bd.js";import{S as dn,i as ln,g as d,s as i,r as a,A as cn,h as l,f as n,c as s,j as u,u as p,x as r,k as c,y as rn,a as o,v as f,d as x,t as m,w as b}from"../chunks/index.f61edf3b.js";import{C as an}from"../chunks/CodeBlock.38e566ae.js";import{H as v,E as un}from"../chunks/EditOnGithub.48fa589f.js";function pn(Xt){let k,xe,pe,me,_,be,$,ve,h,gt=`Handler file for choosing the correct version of ONNX Runtime, based on the environment.
Ideally, we could import the <code>onnxruntime-web</code> and <code>onnxruntime-node</code> packages only when needed,
but dynamic imports don’t seem to work with the current webpack version and/or configuration.
This is possibly due to the experimental nature of top-level await statements.
So, we just import both packages, and use the appropriate one based on the environment:`,ke,N,Lt="<li>When running in node, we use <code>onnxruntime-node</code>.</li> <li>When running in the browser, we use <code>onnxruntime-web</code> (<code>onnxruntime-node</code> is not bundled).</li>",_e,T,It="This module is not directly exported, but can be accessed through the environment variables:",$e,P,he,E,At='<li><a href="#module_backends/onnx">backends/onnx</a><ul><li><em>static</em><ul><li><a href="#module_backends/onnx.deviceToExecutionProviders"><code>.deviceToExecutionProviders([device])</code></a> ⇒ <code>Array.&lt;ONNXExecutionProviders&gt;</code></li> <li><a href="#module_backends/onnx.createInferenceSession"><code>.createInferenceSession(buffer, session_options, session_config)</code></a> ⇒ <code>*</code></li> <li><a href="#module_backends/onnx.isONNXTensor"><code>.isONNXTensor(x)</code></a> ⇒ <code>boolean</code></li> <li><a href="#module_backends/onnx.isONNXProxy"><code>.isONNXProxy()</code></a> ⇒ <code>boolean</code></li></ul></li> <li><em>inner</em><ul><li><a href="#module_backends/onnx..defaultDevices"><code>~defaultDevices</code></a> : <code>Array.&lt;ONNXExecutionProviders&gt;</code></li> <li><a href="#module_backends/onnx..wasmInitPromise"><code>~wasmInitPromise</code></a> : <code>Promise&lt;any&gt;</code> | <code>null</code></li> <li><a href="#module_backends/onnx..DEVICE_TO_EXECUTION_PROVIDER_MAPPING"><code>~DEVICE_TO_EXECUTION_PROVIDER_MAPPING</code></a> : <code>*</code></li> <li><a href="#module_backends/onnx..supportedDevices"><code>~supportedDevices</code></a> : <code>*</code></li> <li><a href="#module_backends/onnx..ONNX_ENV"><code>~ONNX_ENV</code></a> : <code>*</code></li> <li><a href="#module_backends/onnx..ONNXExecutionProviders"><code>~ONNXExecutionProviders</code></a> : <code>*</code></li></ul></li></ul></li>',Ne,Te,Pe,y,Ee,w,ye,O,Rt="Map a device to the execution providers to use for the given device.",we,C,Dt='<strong>Kind</strong>: static method of <a href="#module_backends/onnx"><code>backends/onnx</code></a><br/> <strong>Returns</strong>: <code>Array.&lt;ONNXExecutionProviders&gt;</code> - The execution providers to use for the given device.',Oe,H,jt="<thead><tr><th>Param</th><th>Type</th><th>Default</th><th>Description</th></tr></thead> <tbody><tr><td>[device]</td><td><code>*</code></td><td><code></code></td><td><p>(Optional) The device to run the inference on.</p></td></tr></tbody>",Ce,He,Me,M,Xe,X,ge,g,Vt="Create an ONNX inference session.",Le,L,St='<strong>Kind</strong>: static method of <a href="#module_backends/onnx"><code>backends/onnx</code></a><br/> <strong>Returns</strong>: <code>*</code> - The ONNX inference session.',Ie,I,Wt="<thead><tr><th>Param</th><th>Type</th><th>Description</th></tr></thead> <tbody><tr><td>buffer</td><td><code>Uint8Array</code></td><td><p>The ONNX model buffer.</p></td> </tr><tr><td>session_options</td><td><code>*</code></td><td><p>ONNX inference session options.</p></td> </tr><tr><td>session_config</td><td><code>Object</code></td><td><p>ONNX inference session configuration.</p></td></tr></tbody>",Ae,Re,De,A,je,R,Ve,D,Ut="Check if an object is an ONNX tensor.",Se,j,Kt='<strong>Kind</strong>: static method of <a href="#module_backends/onnx"><code>backends/onnx</code></a><br/> <strong>Returns</strong>: <code>boolean</code> - Whether the object is an ONNX tensor.',We,V,Jt="<thead><tr><th>Param</th><th>Type</th><th>Description</th></tr></thead> <tbody><tr><td>x</td><td><code>any</code></td><td><p>The object to check</p></td></tr></tbody>",Ue,Ke,Je,S,Ze,W,ze,U,Zt="Check if ONNX’s WASM backend is being proxied.",Ge,K,zt='<strong>Kind</strong>: static method of <a href="#module_backends/onnx"><code>backends/onnx</code></a><br/> <strong>Returns</strong>: <code>boolean</code> - Whether ONNX’s WASM backend is being proxied.',Be,qe,Fe,J,Ye,Z,Qe,z,Gt='<strong>Kind</strong>: inner property of <a href="#module_backends/onnx"><code>backends/onnx</code></a>',et,tt,nt,G,ot,B,it,q,Bt=`To prevent multiple calls to <code>initWasm()</code>, we store the first call in a Promise
that is resolved when the first InferenceSession is created. Subsequent calls
will wait for this Promise to resolve before creating their own InferenceSession.`,st,F,qt='<strong>Kind</strong>: inner property of <a href="#module_backends/onnx"><code>backends/onnx</code></a>',dt,lt,ct,Y,rt,Q,at,ee,Ft='<strong>Kind</strong>: inner constant of <a href="#module_backends/onnx"><code>backends/onnx</code></a>',ut,pt,ft,te,xt,ne,mt,oe,Yt="The list of supported devices, sorted by priority/performance.",bt,ie,Qt='<strong>Kind</strong>: inner constant of <a href="#module_backends/onnx"><code>backends/onnx</code></a>',vt,kt,_t,se,$t,de,ht,le,en='<strong>Kind</strong>: inner constant of <a href="#module_backends/onnx"><code>backends/onnx</code></a>',Nt,Tt,Pt,ce,Et,re,yt,ae,tn='<strong>Kind</strong>: inner typedef of <a href="#module_backends/onnx"><code>backends/onnx</code></a>',wt,Ot,Ct,ue,Ht,fe,Mt;return $=new v({props:{title:"backends/onnx",local:"backendsonnx",headingTag:"h1"}}),P=new an({props:{code:"aW1wb3J0JTIwJTdCJTIwZW52JTIwJTdEJTIwZnJvbSUyMCclNDBodWdnaW5nZmFjZSUyRnRyYW5zZm9ybWVycyclM0IlMEFjb25zb2xlLmxvZyhlbnYuYmFja2VuZHMub25ueCklM0I=",highlighted:`<span class="hljs-keyword">import</span> { env } <span class="hljs-keyword">from</span> <span class="hljs-string">&#x27;@huggingface/transformers&#x27;</span>;
<span class="hljs-variable language_">console</span>.<span class="hljs-title function_">log</span>(env.<span class="hljs-property">backends</span>.<span class="hljs-property">onnx</span>);`,wrap:!1}}),w=new v({props:{title:"backends/onnx.deviceToExecutionProviders([device]) ⇒ <code> Array. < ONNXExecutionProviders > </code>",local:"backendsonnxdevicetoexecutionprovidersdevice--code-array--onnxexecutionproviders--code",headingTag:"h2"}}),X=new v({props:{title:"backends/onnx.createInferenceSession(buffer, session_options, session_config) ⇒ <code> * </code>",local:"backendsonnxcreateinferencesessionbuffer-sessionoptions-sessionconfig--code--code",headingTag:"h2"}}),R=new v({props:{title:"backends/onnx.isONNXTensor(x) ⇒ <code> boolean </code>",local:"backendsonnxisonnxtensorx--code-boolean-code",headingTag:"h2"}}),W=new v({props:{title:"backends/onnx.isONNXProxy() ⇒ <code> boolean </code>",local:"backendsonnxisonnxproxy--code-boolean-code",headingTag:"h2"}}),Z=new 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