move_focus_out
Description:
The move_focus_out signal is a keybinding signal which gets emitted when focus is moved away from the scrolled window by a keybinding.
The move_focus signal is emitted with direction_type on this
scrolled window’s toplevel parent in the container hierarchy. The default bindings for this signal are `Ctrl + Tab` to move forward and `Ctrl
+ Shift + Tab` to move backward.
Parameters:
| direction_type |
either gtk_dir_tab_forward or gtk_dir_tab_backward |