{"ast_node_type":"other","tokens":[{"end":93,"kind":"keyword","start":0,"text":"GenericArgsRef,"}]}
    GenericArgsRef, OpaqueHiddenType, OpaqueTypeKey, RegionVid, Ty, TyCtxt, TypeVisitableExt,
    self, CanonicalUserTypeAnnotation, CanonicalUserTypeAnnotations, CoroutineArgsExt,
    UserArgs, UserTypeAnnotationIndex, fold_regions,