pytorch

73a156e8 - [ONNX] Update pytorch/onnx docs for new export API args (#39802)

[ONNX] Update pytorch/onnx docs for new export API args (#39802) Summary: Update pytorch/onnx docs for new export API args: Use external data format and Training args. Pull Request resolved: https://github.com/pytorch/pytorch/pull/39802 Reviewed By: hl475 Differential Revision: D22139664 Pulled By: houseroad fbshipit-source-id: 7d6dcf75129cb88987f8c37b7d9d48ca594c0f38