pytorch

f17e76b0 - Expand description of bias_sizes arg for convolution_backward (#70195)

Expand description of bias_sizes arg for convolution_backward (#70195) Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/70195 Test Plan: Imported from OSS Reviewed By: zou3519 Differential Revision: D33240155 Pulled By: jbschlosser fbshipit-source-id: c4f907d6e33e4d1eeb1b5228f1152307c8b27729