{"ast_node_type":"other","tokens":[{"end":112,"kind":"keyword","start":0,"text":"Some(\"removed"}]}
     Some("removed in favor of `#![feature(adt_const_params)]` and `#![feature(generic_const_exprs)]`"), 88369),
    (removed, const_generics, "1.56.0", Some(44580),
    /// Allows `[x; N]` where `x` is a constant (RFC 2203).