[mypy] Add/fix type annotations in `data_structures/heap/skew_heap.py` (#5634)

* Add abstract base class Comparable

* [mypy] Fix type annotations (strict mode)

* Fix a typo

* Remove Comparable class and set bound to bool

Dylan Buchi committed 4y ago

99983c91ca26e8cf592699dd320e0d58140cfe41

Parent: 21c99d2

Committed by GitHub <noreply@github.com> on 10/31/2021, 8:38:24 AM