pub trait TreeModelFilterImplExt: ObjectSubclass {
// Required methods
fn parent_visible<M: IsA<TreeModel>>(
&self,
child_model: &M,
iter: &TreeIter
) -> bool;
fn parent_modify<M: IsA<TreeModel>>(
&self,
child_model: &M,
iter: &TreeIter,
value: Value,
index: i32
);
}