{"ast_node_type":"other","tokens":[{"end":85,"kind":"keyword","start":0,"text":"ExistentialPredicate,"}]}
    ExistentialPredicate, ExistentialProjection, ExistentialTraitRef, FloatTy, FnSig,
    Abi, AdtDef, Binder, BoundRegionKind, BoundTyKind, BoundVariableKind, ClosureKind, DynKind,
    GenericArgKind, GenericArgs, IntTy, MirConst, Movability, Pattern, Region, RigidTy, Span,