contains method

bool contains(Iterable<K> keys)

Implementation

bool contains(Iterable<K> keys) {
  TrieNode<K?, V?>? current = root;
  for (var key in keys) {
    if (current!.contains(key)) {
      current = current.get(key);
    } else {
      return false;
    }
  }
  return current!.contains(null);
}