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sa_session = <sqlalchemy.orm.scoping.scoped_session object at 0x11e5bd208>

    def test_update_notification(sa_session: galaxy_scoped_session):
        notificationManager = create_notification_mananger(sa_session)
>       notification = notificationManager.create(message="New notification")

test_notification.py:35: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
../../../../lib/galaxy/managers/notification.py:39: in create
    notification = model.Notification(message_text=message)
<string>:4: in __init__
    ???
../../../../../../.pyenv/versions/3.7.3/lib/python3.7/site-packages/sqlalchemy/orm/state.py:474: in _initialize_instance
    manager.dispatch.init(self, args, kwargs)
../../../../../../.pyenv/versions/3.7.3/lib/python3.7/site-packages/sqlalchemy/event/attr.py:343: in __call__
    fn(*args, **kw)
../../../../../../.pyenv/versions/3.7.3/lib/python3.7/site-packages/sqlalchemy/orm/mapper.py:3610: in _event_on_init
    instrumenting_mapper._check_configure()
../../../../../../.pyenv/versions/3.7.3/lib/python3.7/site-packages/sqlalchemy/orm/mapper.py:1901: in _check_configure
    _configure_registries({self.registry}, cascade=True)
../../../../../../.pyenv/versions/3.7.3/lib/python3.7/site-packages/sqlalchemy/orm/mapper.py:3425: in _configure_registries
    _do_configure_registries(registries, cascade)
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

registries = set(), cascade = True

    @util.preload_module("sqlalchemy.orm.decl_api")
    def _do_configure_registries(registries, cascade):
    
        registry = util.preloaded.orm_decl_api.registry
    
        orig = set(registries)
    
        for reg in registry._recurse_with_dependencies(registries):
            has_skip = False
    
            for mapper in reg._mappers_to_configure():
                run_configure = None
                for fn in mapper.dispatch.before_mapper_configured:
                    run_configure = fn(mapper, mapper.class_)
                    if run_configure is EXT_SKIP:
                        has_skip = True
                        break
                if run_configure is EXT_SKIP:
                    continue
    
                if getattr(mapper, "_configure_failed", False):
                    e = sa_exc.InvalidRequestError(
                        "One or more mappers failed to initialize - "
                        "can't proceed with initialization of other "
                        "mappers. Triggering mapper: '%s'. "
                        "Original exception was: %s"
                        % (mapper, mapper._configure_failed)
                    )
                    e._configure_failed = mapper._configure_failed
>                   raise e
E                   sqlalchemy.exc.InvalidRequestError: One or more mappers failed to initialize - can't proceed with initialization of other mappers. Triggering mapper: 'mapped class User->galaxy_user'. Original exception was: Could not determine join condition between parent/child tables on relationship User.all_notifications - there are no foreign keys linking these tables.  Ensure that referencing columns are associated with a ForeignKey or ForeignKeyConstraint, or specify a 'primaryjoin' expression.

../../../../../../.pyenv/versions/3.7.3/lib/python3.7/site-packages/sqlalchemy/orm/mapper.py:3460: InvalidRequestError