{"ast_node_type":"other","tokens":[{"end":84,"kind":"keyword","start":0,"text":"LateBound(ty::DebruijnIndex,"}]}
    LateBound(ty::DebruijnIndex, /* late-bound index */ u32, /* decl */ LocalDefId),
    EarlyBound(/* decl */ LocalDefId),
    Free(LocalDefId, /* lifetime decl */ LocalDefId),