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pub trait PreferencesGroupExt: 'static {
    fn add(&self, child: &impl IsA<Widget>);
    fn description(&self) -> Option<GString>;
    fn title(&self) -> GString;
    fn remove(&self, child: &impl IsA<Widget>);
    fn set_description(&self, description: Option<&str>);
    fn set_title(&self, title: &str);
    fn connect_description_notify<F: Fn(&Self) + 'static>(
        &self,
        f: F
    ) -> SignalHandlerId; fn connect_title_notify<F: Fn(&Self) + 'static>(
        &self,
        f: F
    ) -> SignalHandlerId; }

Required methods

Implementors