syntax_data: {"ast_node_type":"other","tokens":[{"end":52,"kind":"keyword","start":0,"text":"TypeFolder,"}]}
source_snippet:     TypeFolder, TypeSuperFoldable, TypeVisitableExt,
context_before:     self, PolyTraitPredicate, SizedTraitKind, TraitPredicate, TraitRef, Ty, TyCtxt, TypeFoldable,
context_after: };