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    GObject
    ╰── GInitiallyUnowned
        ╰── GtkObject
            ╰── GtkWidget
                ╰── GtkContainer
                    ╰── GtkBin
                        ╰── GtkItem
                            ╰── GtkMenuItem
                                ╰── GtkTearoffMenuItem
GtkTearoffMenuItem implements AtkImplementorIface, GtkBuildable and GtkActivatable.