Update sphinx-autodoc-typehints to 1.9.0

[pyup-bot]

This PR updates sphinx-autodoc-typehints from 1.8.0 to 1.9.0.

Changelog

1.9.0

=====

* Added support for typing_extensions_
* Added the ``typehints_document_rtype`` option (PR by Simon-Martin Schröder)
* Fixed metaclasses as annotations causing ``TypeError``
* Fixed rendering of ``typing.Literal``
* Fixed OSError when generating docs for SQLAlchemy mapped classes
* Fixed unparametrized generic classes being rendered with their type parameters
(e.g. ``Dict[~KT, ~VT]``)

.. _typing_extensions: https://pypi.org/project/typing-extensions/

Links

• PyPI: https://pypi.org/project/sphinx-autodoc-typehints
• Changelog: https://pyup.io/changelogs/sphinx-autodoc-typehints/

[codecov]

Codecov Report

Merging #1086 into master will not change coverage.
The diff coverage is n/a.

@@          Coverage Diff           @@
##           master   #1086   +/-   ##
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  Coverage     100%    100%           
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  Files          13      13           
  Lines         619     619           
  Branches       12      12           
======================================
  Hits          619     619

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