def outerjoin(self, *props, **kwargs):
        aliased, from_joinpoint = kwargs.pop('aliased', False), \
            kwargs.pop('from_joinpoint', False)
        if kwargs:
            raise TypeError("unknown arguments: %s" %
                            ','.join(kwargs))
        return self._join(props,
                          outerjoin=True, create_aliases=aliased,
                          from_joinpoint=from_joinpoint)
Create a left outer join against this ``Query`` object's criterion
dataset/ETHPy150Open goFrendiAsgard/kokoropy/kokoropy/packages/sqlalchemy/orm/query.py/Query.outerjoin