pub exec fn ex_hash_set_contains<Key, S, Q>(m: &HashSet<Key, S>, k: &Q) -> result : bool
where Key: Borrow<Q> + Hash + Eq, Q: Hash + Eq + ?Sized, S: BuildHasher,
Expand description
ensures
obeys_key_model::<Key>() && builds_valid_hashers::<S>()
    ==> result == set_contains_borrowed_key(m@, k),