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Mike Bayer
108f5ec3fe
Fixed issue in ORM Annotated Declarative which prevented a :class:`_orm.declared_attr` with or without :attr:`_orm.declared_attr.directive` from being used on a mixin which did not return a :class:`.Mapped` datatype, and instead returned a supplemental ORM datatype such as :class:`.AssociationProxy`. The Declarative runtime would erroneously try to interpret this annotation as needing to be :class:`.Mapped` and raise an error. Fixed typing issue where using the :class:`.AssociationProxy` return type from a :class:`_orm.declared_attr` function was disallowed. Fixes: #9957 Change-Id: I797c5bbdb3d1e81a04ed21c6558ec349b970476f