{"ast_node_type":"other","tokens":[{"end":52,"kind":"keyword","start":0,"text":"self.generics_of(def_id)"}]}
                            self.generics_of(def_id)
                        [self.types.self_param.into()].into_iter().chain(
                                .own_args(ty::GenericArgs::identity_for_item(self, def_id))