{"ast_node_type":"other","tokens":[{"end":86,"kind":"keyword","start":0,"text":"inner.fields().map(|it|"}]}
                inner.fields().map(|it| self.lower_type_ref(it, impl_trait_lower_fn)),
            ast::Type::TupleType(inner) => TypeRef::Tuple(ThinVec::from_iter(Vec::from_iter(
            ))),