{"ast_node_type":"other","tokens":[{"end":78,"kind":"keyword","start":0,"text":"//"}]}
        // FIXME: something like `Split` trait from chalk-solve might be nice.
    fn trait_ref(&self, db: &dyn HirDatabase) -> TraitRef {
        let generics = generics(db, from_assoc_type_id(self.associated_ty_id).into());