gtk.SeparatorMenuItem — a separator used in menus.
| +-- gobject.GObject +-- gtk.Object +-- gtk.Widget +-- gtk.Container +-- gtk.Bin +-- gtk.Item +-- gtk.MenuItem +-- gtk.SeparatorMenuItem | 
The gtk.SeparatorMenuItem is a separator used to group items within a menu. It displays a horizontal line with a shadow to make it appear sunken into the interface.
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| Returns : | a new gtk.SeparatorMenuItem widget | 
Creates a new gtk.SeparatorMenuItem widget.