{"ast_node_type":"other","tokens":[{"end":80,"kind":"keyword","start":0,"text":"PolyTraitPredicate,"}]}
    PolyTraitPredicate, Projection, Ty, TyCtxt, TypeFoldable, TypeSuperFoldable,
    self, AliasTy, Const, ConstKind, FallibleTypeFolder, InferConst, InferTy, Opaque,
    TypeSuperVisitable, TypeVisitable, TypeVisitor,