Multimap<K, V1> fromMultimap, Function<? super V1, V2> function) {
    checkNotNull(function);
    EntryTransformer<K, V1, V2> transformer = (key, value) -> function.apply(value);
    return transformEntries(fromMultimap, transformer);
  }

  /**
   * Returns a view of a {@code ListMultimap} where each value is transformed by a function. All

          Multimap<K, V1> fromMultimap, Function<? super V1, V2> function) {
    checkNotNull(function);
    EntryTransformer<K, V1, V2> transformer = (key, value) -> function.apply(value);
    return transformEntries(fromMultimap, transformer);
  }

  /**
   * Returns a view of a {@code ListMultimap} where each value is transformed by a function. All