def _configure_specific(self, client, screen_rect, border_color, index):
        """Specific configuration for xmonad three columns."""
        if index == 0:
            self._configure_main(client)
        elif self._get_column(index - 1).name == "left":
            self._configure_left(client, index)
        else:
            self._configure_right(client, index)
Specific configuration for xmonad three columns.
libqtile/layout/xmonad.py