#[doc(hidden)]pubusegtk::prelude::*;pubusecrate::auto::traits::FrameExt as PanelFrameExt;pubusecrate::auto::traits::GridExt as PanelGridExt;pubusecrate::auto::traits::WidgetExt as PanelWidgetExt;pubusecrate::auto::traits::*;pubusecrate::save_delegate::SaveDelegateExtManual;