A module attribute with a value declared separately from its type is documented twice

[AWhetter]

Essentially, we need to address this TODO that's in the tests:

sphinx-autoapi/tests/python/test_pyintegration.py

Lines 352 to 355 in 9936661

	# TODO: This should either not have a value
	# or should display the value as part of the type declaration.
	# This prevents setting warningiserror.
	assert example_file.find(id="example.is_valid")