code: def get_feed(self, datasource_id):
          
          info = self.__metadb.one(
              """
              SELECT to_json(ds) as datasource
                   , to_json(fc) as connector
                   , to_json(fct) as connector_type
                   , to_json(ctp) as connector_type_preset
                   , json_build_object('email', u.email, 'full_name', u.full_name) as author_user
                FROM meta.feed_datasource ds
                LEFT JOIN meta.feed_connector fc 
                       ON fc.id=ds.connector_id
                LEFT JOIN meta.feed_connector_type fct 
                       ON fct.id=fc.connector_type_id
                LEFT JOIN meta.feed_connector_type_preset ctp 
                       ON ctp.id=ds.connector_type_preset_id
                LEFT JOIN meta.user_list u 
                       ON u.id=ds.author_user_id
               WHERE ds.id = :datasource_id::uuid
              """,
              {"datasource_id": datasource_id}
          )
          return FeedDataSource(**info)
docs: Получение настроек для фида
          :param datasource_id: идентификатор фида
          :return: FeedDataSource