def move_down(self, force: bool = False) -> None:
        """
        Move this window below the previous window along the z axis.

        Will not lower a "normal" window (i.e. one that is not "kept_above/below")
        below a window that is marked as "kept_below".

        Will not lower a window where "keep_above" is True unless
        force is set to True.
        """

        Move this window below the previous window along the z axis.

        Will not lower a "normal" window (i.e. one that is not "kept_above/below")
        below a window that is marked as "kept_below".

        Will not lower a window where "keep_above" is True unless
        force is set to True.
        
libqtile/backend/base/window.py