{"ast_node_type":"other","tokens":[{"end":100,"kind":"keyword","start":0,"text":"///"}]}
/// `Cow<'a, Option<u8>>`, we insert an implicit dereference to allow the pattern `Some(_)` to type,
/// the `deref_patterns` feature is enabled and we're matching against a scrutinee of type
/// but we must not dereference it when checking the pattern `Cow::Borrowed(_)`.