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use glib::subclass::prelude::*; use super::cell_renderer_text::CellRendererTextImpl; use CellRendererSpinClass; use CellRendererTextClass; pub trait CellRendererSpinImpl: CellRendererTextImpl + 'static {} unsafe impl<T: ObjectSubclass + CellRendererSpinImpl> IsSubclassable<T> for CellRendererSpinClass { fn override_vfuncs(&mut self) { <CellRendererTextClass as IsSubclassable<T>>::override_vfuncs(self); } }