{"ast_node_type":"other","tokens":[{"end":97,"kind":"keyword","start":0,"text":"TypeRef::RawPtr(type_ref,"}]}
                TypeRef::RawPtr(type_ref, _) | TypeRef::Slice(type_ref) => go(*type_ref, f, map),
                TypeRef::Tuple(types) => types.iter().for_each(|&t| go(t, f, map)),
                TypeRef::Reference(it) => go(it.ty, f, map),