code: def construct(self):
          '''Build the :class:`QueryElement` representing this query.'''
          if self.__construct is None:
              self.__construct = self._construct()
          return self.__construcf construct(self):
          '''Build the :class:`QueryElement` representing this query.'''
          if self.__construct is None:
              self.__construct = self._construct()
          return self.__construct
docs: Build the :class:`QueryElement` representing this query.