Return a tuple containing the ``mode``, its value, and
        its associated ``QLabel`` instance.

        |Args|

        * ``mode`` (**str**): size and position of new window.

        |Returns|

        * (**str**, **object**, **QLabel**: (mode, value, label).

        |Raises|

        * **QtmacsArgumentError** if at least one argument has an invalid type.

def qteGetMode(self, mode: str):
        """
        Return a tuple containing the ``mode``, its value, and
        its associated ``QLabel`` instance.

        |Args|

        * ``mode`` (**str**): size and position of new window.

        |Returns|

        * (**str**, **object**, **QLabel**: (mode, value, label).

        |Raises|

        * **QtmacsArgumentError** if at least one argument has an invalid type.
        """
        for item in self._qteModeList:
            if item[0] == mode:
                return item
        return None