Summary:
There is a module called `2to3` which you can target for future specifically to remove these, the directory of `caffe2` has the most redundant imports:
```2to3 -f future -w caffe2```
Pull Request resolved: https://github.com/pytorch/pytorch/pull/45033
Reviewed By: seemethere
Differential Revision: D23808648
Pulled By: bugra
fbshipit-source-id: 38971900f0fe43ab44a9168e57f2307580d36a38
Summary: added an operator that converts key/value blobs into a blob containing a map pointer, unittest passed.
Differential Revision: D5224449
fbshipit-source-id: 2f60754ed3ba6ed16039c09019117ae3c3646ab2
Summary: added an operator that converts key/value blobs into a blob containing a map pointer, unittest passed.
Differential Revision: D5166513
fbshipit-source-id: 748527c423a163fe55f914c08fff3adfc74a540c