Merge "Improve typing tests" into main

diff --cc test/ext/test_associationproxy.py
index 7feb1267c6a194e944901464acd4ec3f9b49442f,abf8efec7129d28fb03f4e580852674758574735..87812c9ac633f6b20e587706b5253a81004ce21f
--- 1/test/ext/test_associationproxy.py
--- 2/test/ext/test_associationproxy.py
+++ b/test/ext/test_associationproxy.py
@@@ -44,9 -44,8 +44,10 @@@ from sqlalchemy.testing import expect_w
  from sqlalchemy.testing import fixtures
  from sqlalchemy.testing import is_
  from sqlalchemy.testing import is_false
 +from sqlalchemy.testing import is_none
 +from sqlalchemy.testing import is_not_none
  from sqlalchemy.testing.assertions import expect_raises_message
+ from sqlalchemy.testing.entities import ComparableEntity  # noqa
  from sqlalchemy.testing.entities import ComparableMixin  # noqa
  from sqlalchemy.testing.fixtures import fixture_session
  from sqlalchemy.testing.schema import Column

diff --cc test/orm/inheritance/test_assorted_poly.py
Simple merge