def _aliases_from_query(cls, query: Query) -> 'Dict[str, _MapperEntity]': """ Get aliases from SQLAlchemy query. Args: query: SQLAlchemy query. Returns: Dictionary of model aliases. """ join_entities = getattr(query, '_join_entities', None) if join_entities: aliases = {(mapper._target, mapper.name): mapper.entity for mapper in join_entities} else: aliases = { (join_entity._target, join_entity.name): join_entity.entity for join_entity in query._compile_state()._join_entities } return aliases