def METHOD_NAME(self) -> None:
    actual = self.dashboard_owner.create_next_relation()
    actual_serialized = neo4_serializer.serialize_relationship(actual)
    expected = {
        RELATION_END_KEY: 'foo@bar.com',
        RELATION_START_LABEL: 'Dashboard',
        RELATION_END_LABEL: 'User',
        RELATION_START_KEY: 'product_id_dashboard://cluster_id.dashboard_group_id/dashboard_id',
        RELATION_TYPE: 'OWNER',
        RELATION_REVERSE_TYPE: 'OWNER_OF'
    }
    assert actual is not None
    self.assertDictEqual(actual_serialized, expected)