Method remove

lib/sqlalchemy/orm/events.py:148–157

(ref: ReferenceType[_T])

                return None

        def remove(ref: ReferenceType[_T]) -> None:
            key = event.registry._EventKey(  # type: ignore [type-var]
                None,
                identifier,
                listen,
                instrumentation._instrumentation_factory,
            )
            getattr(
                instrumentation._instrumentation_factory.dispatch, identifier
            ).remove(key)

        target = weakref.ref(target.class_, remove)