If a libtorrent return type was specified e.g.
def get_lt_status(self) -> 'lt.torrent_status'
Even as a string autodoc_typehints module would raise and error:
Handler <function process_docstring at 0x7f6c16c8ec10> for event 'autodoc-process-docstring' threw an exception (exception: getattr(): attribute name must be string)
This was a result of using a custom mock in Sphinx autodoc config and
this Mock object name or qualname returns an object instead of str.
Testing with putting modules in autodoc_mock_imports again showed no
issues so removing custom mock
Ref: https://github.com/tox-dev/sphinx-autodoc-typehints/issues/220
62a4052178