pytorch

d431c77d - [sharded_tensor] fix typing issue for placement (#63426)

[sharded_tensor] fix typing issue for placement (#63426) Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/63426 placement should either be a string or a _remote_device, this fixes the type to match the behaviors ghstack-source-id: 136041125 Reviewed By: pritamdamania87 Differential Revision: D30379702 fbshipit-source-id: 34e226494240923b433e3a39cc08c84d42cdad6b