}

  /**
   * Returns the platform preferred set implementation that preserves insertion order when used only
   * for insertions.
   */
  static <E extends @Nullable Object> Set<E> preservesInsertionOrderOnAddsSet() {
    return new LinkedHashSet<>();
  }

  /** Equivalent to Arrays.copyOfRange(source, from, to, arrayOfType.getClass()). */

  }

  /**
   * Returns the platform preferred set implementation that preserves insertion order when used only
   * for insertions.
   */
  static <E extends @Nullable Object> Set<E> preservesInsertionOrderOnAddsSet() {
    return CompactHashSet.create();
  }

  /** Equivalent to Arrays.copyOfRange(source, from, to, arrayOfType.getClass()). */
  /*

  }

  /**
   * Returns the platform preferred set implementation that preserves insertion order when used only
   * for insertions.
   */
  static <E extends @Nullable Object> Set<E> preservesInsertionOrderOnAddsSet() {
    return CompactHashSet.create();
  }

  /** Equivalent to Arrays.copyOfRange(source, from, to, arrayOfType.getClass()). */
  /*