{"ast_node_type":"other","tokens":[{"end":81,"kind":"keyword","start":0,"text":"self.def_key(parent_index).disambiguated_data.data.get_opt_name()"}]}
                self.def_key(parent_index).disambiguated_data.data.get_opt_name()
                let parent_index = def_key.parent.expect("no parent for a constructor");
            } else {