code: def remove_completer(self):
          
  
          if self.__completer:
              LOGGER.debug("> Removing '{0}' completer.".format(self.__completer))
              # Signals / Slots.
              self.__completer.activated.disconnect(self.__insert_completion)
  
              self.__completer.deleteLater()
              self.__completer = None
          return True
docs: Removes current completer.
  
          :return: Method success.
          :rtype: bool