{"ast_node_type":"other","tokens":[{"end":85,"kind":"keyword","start":0,"text":"BoundConstness,"}]}
    BoundConstness, BoundPolarity, ByRef, CaptureBy, DelimArgs, ImplPolarity, IsAuto,
    AssignOp, AssignOpKind, AttrId, AttrStyle, BinOp, BinOpKind, BindingMode, BorrowKind,
    MetaItemInner, MetaItemLit, Movability, Mutability, UnOp,