* If you override either of these methods, you may wish to override {@link #equals} to forward to
   * this implementation.
   *
   * @since 7.0
   */
  protected String standardToString() {
    return getKey() + "=" + getValue();
  }

   * If you override either of these methods, you may wish to override {@link #equals} to forward to
   * this implementation.
   *
   * @since 7.0
   */
  protected String standardToString() {
    return getKey() + "=" + getValue();
  }

   * #entrySet}. If you override {@link #entrySet}, you may wish to override {@link #toString} to
   * forward to this implementation.
   *
   * @since 7.0
   */
  protected String standardToString() {
    return Maps.toStringImpl(this);
  }

    public <T extends @Nullable Object> T[] toArray(T[] array) {
      return standardToArray(array);
    }

    @Override
    public String toString() {
      return standardToString();
    }
  }

  /**
   * Returns a view of the portion of {@code set} whose elements are contained by {@code range}.
   *