Method transform

corpus/java/training/guava/collect/Maps.java:884–887

(final K key)

      Set<K> set, final Function<? super K, V> function) {
    return new TransformedIterator<K, Entry<K, V>>(set.iterator()) {
      @Override
      Entry<K, V> transform(final K key) {
        return immutableEntry(key, function.apply(key));
      }
    };
  }