};
      }
    }

    @Override
    Set<K> createKeySet() {
      return new KeySet();
    }

    static <K extends @Nullable Object, V extends @Nullable Object> boolean removeAllKeys(
        Map<K, V> map, Predicate<? super Entry<K, V>> entryPredicate, Collection<?> keyCollection) {
      Iterator<Entry<K, V>> entryItr = map.entrySet().iterator();
      boolean result = false;

        };
      }
    }

    @Override
    Set<K> createKeySet() {
      return new KeySet();
    }

    static <K extends @Nullable Object, V extends @Nullable Object> boolean removeAllKeys(
        Map<K, V> map, Predicate<? super Entry<K, V>> entryPredicate, Collection<?> keyCollection) {
      Iterator<Entry<K, V>> entryItr = map.entrySet().iterator();
      boolean result = false;