{"ast_node_type":"other","tokens":[{"end":74,"kind":"keyword","start":0,"text":"//"}]}
// maximum value of `u32::MAX - 1`. In practice, this is more than enough.
// this type only takes up 4 bytes, at the cost of being restricted to a
#[derive(Clone, Copy, PartialEq, Eq, Hash, HashStable_Generic)]