* conversion is done lazily.
   *
   * <p>The returned iterable's iterator supports {@code remove()} if the input iterator does. After
   * a successful {@code remove()} call, {@code fromIterable} no longer contains the corresponding
   * element.
   */
  /*
   * Just as Converter could implement `Function<@Nullable A, @Nullable B>` instead of `Function<A,

   * conversion is done lazily.
   *
   * <p>The returned iterable's iterator supports {@code remove()} if the input iterator does. After
   * a successful {@code remove()} call, {@code fromIterable} no longer contains the corresponding
   * element.
   */
  /*
   * Just as Converter could implement `Function<@Nullable A, @Nullable B>` instead of `Function<A,