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Description
Currently, world_manager.py and world_communicator.py are copied into torch package and they become part of torch after installing multiworld. This is inappropriate. We keep those files under multiworld package, but we patch pytorch such that the variables (_worlds, _World, etc) required by multiworld are exposed by patching init.py in distributed module. Therefore, pytorch patch file is updated and all other necessary changes are made to ensure that all the examples can be executed.
Type of Change
Checklist