public static function postRender($content, array $element) {
    /** @var \CommerceGuys\Addressing\AddressFormat\AddressFormat $address_format */
    $address_format = $element['address_format']['#value'];
    $locale = $element['locale']['#value'];
    // Add the country to the bottom or the top of the format string,
    // depending on whether the format is minor-to-major or major-to-minor.
    if (Locale::match($address_format->getLocale(), $locale)) {
      $format_string = '%country' . "\n" . $address_format->getLocalFormat();
    }
    else {
      $format_string = $address_format->getFormat() . "\n" . '%country';
    }

    // Add the title (prefix) into the format string before the first name.
    // Note: This feels like the wrong place to add address formatting.
    // (notwithstanding %country above).
    // You may inspect the constructor of
    // vendor/commerceguys/addressing/src/AddressFormat/AddressFormat.php
    // And figure out how to extend the class that sets $definition['format']
    // and/or $definition['local_format'].
    // But for now for speed and convenience we inject the %title here.
    // (With some consideration for different locale naming possibilities)
    if (strpos($format_string, '%givenName %familyName') !== FALSE) {
      $format_string = str_replace('%givenName %familyName',
        '%title %givenName %familyName', $format_string);
    }
    elseif (strpos($format_string, '%familyName %givenName') !== FALSE) {
      $format_string = str_replace('%familyName %givenName',
        '%title %familyName %givenName', $format_string);
    }
    elseif (strpos($format_string, '%familyName') !== FALSE) {
      $format_string = str_replace('%familyName',
        '%title %familyName', $format_string);
    }
    elseif (strpos($format_string, '%givenName') !== FALSE) {
      $format_string = str_replace('%givenName',
        '%title %givenName', $format_string);
    }

    $replacements = [];
    foreach (Element::getVisibleChildren($element) as $key) {
      $child = $element[$key];
      if (isset($child['#placeholder'])) {
        $replacements[$child['#placeholder']] = $child['#value'] ? $child['#markup'] : '';
      }
    }
    $content = self::replacePlaceholders($format_string, $replacements);
    $content = nl2br($content, FALSE);

    return $content;
  }