class CommerceShippingExample2 extends CommerceShippingQuote {
  /**
   * Settings form callback: adds our custom settings to the Rules action form.
   */
  public function settings_form(&$form, $rules_settings) {
    $form['shipping_price'] = array(
      '#type' => 'textarea',
      '#title' => t('Shipping price'),
      '#description' => t('Configure what the shipping price per order should be.'),
      '#default_value' => is_array($rules_settings) && isset($rules_settings['shipping_price']) ? $rules_settings['shipping_price'] : 42,
      '#element_validate' => array('rules_ui_element_decimal_validate'),
    );
  }

  /**
   * Submit form callback: adds additional elements to the checkout pane when
   * this shipping method is selected.
   */
  public function submit_form($pane_values, $checkout_pane, $order = NULL) {
    $form = parent::submit_form($pane_values, $checkout_pane, $order);

    // Default to the order in the object's scope if none is explicitly passed in.
    if (empty($order)) {
      $order = $this->order;
    }

    // Merge values from the order into the checkout pane values.
    if (!empty($order->data['commerce_shipping_example'])) {
      $pane_values += $order->data['commerce_shipping_example'];
    }

    // Then merge in default values.
    $pane_values += array(
      'express' => 0,
      'name2' => '',
    );
 $form ['removed'] = array(
 '#title' => t('testing'),
 '#type' => 'item',
 '#description' =>t('developer'),
 );

 
    $form['name2'] = array(
      '#type' => 'none',
      '#title' => t('Name2'),
      '#description' => t('This is a demonstration field coded to fail validation for single character values.'),
      '#default_value' => $pane_values['name2'],
      '#required' => TRUE,
    );

    return $form;
  }

 public function calculate_quote($currency_code, $form_values = array(), $order = NULL, $pane_form = NULL, $pane_values = NULL) {
    if (empty($order)) {
      $order = $this->order;
    }

    $settings = $this->settings;

    $shipping_line_items = array();

    $shipping_line_items[] = array(
      'amount' => commerce_currency_decimal_to_amount($settings['shipping_price'], $currency_code),
      'currency_code' => $currency_code,
      'label' => t('Normal shipping'),
    );

    if (!empty($form_values['express'])) {
      $shipping_line_items[] = array(
        'amount' => commerce_currency_decimal_to_amount($settings['shipping_price'], $currency_code),
        'currency_code' => $currency_code,
        'label' => t('Express fee'),
      );
    }

    return $shipping_line_items;
  }
}