Trait MarkExt
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pub trait MarkExt: 'static { fn get_category(&self) -> Option<GString>; fn next(&self, category: Option<&str>) -> Option<Mark>; fn prev(&self, category: &str) -> Option<Mark>; }
fn get_category(&self) -> Option<GString>
fn next(&self, category: Option<&str>) -> Option<Mark>
fn prev(&self, category: &str) -> Option<Mark>
impl<O: IsA<Mark>> MarkExt for O