Change function parameter `self` to `input` in torch.__init__.pyi (#40235)
Summary:
Fix https://github.com/pytorch/pytorch/issues/40223: Incorrect "self" keyword arguments in `torch.__init__.pyi` type hints
Pull Request resolved: https://github.com/pytorch/pytorch/pull/40235
Differential Revision: D22285816
Pulled By: ezyang
fbshipit-source-id: ebc35290c0c625916289f1a46abc6ff2197f4bcf
