<h2 dir="auto"><g-emoji class="g-emoji" alias="rocket" fallback-src="https://github.githubassets.com/images/icons/emoji/unicode/1f680.png">🚀</g-emoji> Feature</h2>
<p dir="auto">Per <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/pritamdamania87/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://github.com/pritamdamania87">@pritamdamania87</a>'s comment on <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="524548935" data-permission-text="Title is private" data-url="https://github.com/pytorch/pytorch/issues/30020" data-hovercard-type="pull_request" data-hovercard-url="/pytorch/pytorch/pull/30020/hovercard" href="https://github.com/pytorch/pytorch/pull/30020">#30020</a>, we can have duplicated code in the shutdown implementation of different RPC backends. We should unify this code in RpcAgent's shutdown function, and then each backend can have a <code class="notranslate">shutdownImpl</code> for their custom shutdown implementation details.</p>
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<p dir="auto">Hi guys:<br>
I have build a seq2seq model using nn.LSTMCELL in it. And I want to export a trained one to onnx form. However, when I do this, I have an error says:</p>
<div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="UserWarning: ONNX export failed on ATen operator _thnn_fused_lstm_cell because torch.onnx.symbolic_opset9._thnn_fused_lstm_cell does not exist
  .format(op_name, opset_version, op_name))"><pre class="notranslate"><code class="notranslate">UserWarning: ONNX export failed on ATen operator _thnn_fused_lstm_cell because torch.onnx.symbolic_opset9._thnn_fused_lstm_cell does not exist
  .format(op_name, opset_version, op_name))
</code></pre></div>
<p dir="auto">I think this maybe due to the opset nort supporting nn.LSTMCELL.<br>
Any one could help and share some advice?<br>
Thank you！</p>
<p dir="auto">cc <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/albanD/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://github.com/albanD">@albanD</a> <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/mruberry/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://github.com/mruberry">@mruberry</a> <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/houseroad/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://github.com/houseroad">@houseroad</a> <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/spandantiwari/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://github.com/spandantiwari">@spandantiwari</a> <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/lara-hdr/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://github.com/lara-hdr">@lara-hdr</a> <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/BowenBao/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://github.com/BowenBao">@BowenBao</a> <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/neginraoof/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://github.com/neginraoof">@neginraoof</a> <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/zou3519/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://github.com/zou3519">@zou3519</a></p>