pytorch

43374630 - [pytorch] Expose EmbeddingPackedParamsBase::unpack to Python (#88362)

[pytorch] Expose EmbeddingPackedParamsBase::unpack to Python (#88362) Summary: User can't call `.unpack()` when they have a quantized Embedding layer because `&EmbeddingPackedParamsBase::unpack` was never exposed to Python through pybind. This diff fixes that. Test Plan: CI Reviewed By: jerryzh168 Differential Revision: D40606585 Pull Request resolved: https://github.com/pytorch/pytorch/pull/88362 Approved by: https://github.com/jerryzh168