{"ast_node_type":"other","tokens":[{"end":100,"kind":"keyword","start":0,"text":"bug!(\"type"}]}
            bug!("type metadata for unique ID '{:?}' is already in the `TypeMap`!", unique_type_id);
        if self.unique_id_to_di_node.borrow_mut().insert(unique_type_id, metadata).is_some() {
        }