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pub trait ListModelImplExt: ObjectSubclass {
    fn parent_item_type(&self, list_model: &Self::Type) -> Type;
    fn parent_n_items(&self, list_model: &Self::Type) -> u32;
    fn parent_item(
        &self,
        list_model: &Self::Type,
        position: u32
    ) -> Option<Object>; }

Required methods

Implementors