[x] Adds descriptions to appropriate "what's new" file in docs/source/whatsnew for all changes. Includes link to the GitHub Issue with :issue:`num` or this Pull Request with :pull:`num`. Includes contributor name and/or GitHub username (link with :ghuser:`user`).
~New code is fully documented. Includes numpydoc compliant docstrings, examples, and comments where necessary.~
[x] Maintainer: Appropriate GitHub Labels and Milestone are assigned to the Pull Request and linked Issue.
docs/source/api.rstfor API changes.~docs/source/whatsnewfor all changes. Includes link to the GitHub Issue with:issue:`num`or this Pull Request with:pull:`num`. Includes contributor name and/or GitHub username (link with:ghuser:`user`).