{"ast_node_type":"other","tokens":[{"end":55,"kind":"keyword","start":0,"text":"(accepted,"}]}
    (accepted, const_fn_unsize, "1.54.0", Some(64992)),
    /// Allows unsizing coercions in `const fn`.
    /// Allows const generics to have default values (e.g. `struct Foo<const N: usize = 3>(...);`).