/**
  * Formats the shipping address
  *
  * @param ClientShippingAddressInterface $address
  * @param string                         $lineSeparator
  *
  * @return string
  */
 public function formatShippingAddress(ClientShippingAddressInterface $address, $lineSeparator = self::LINES_SEPARATOR)
 {
     $lines = [];
     $lines[] = sprintf('%s %s', $address->getFirstName(), $address->getLastName());
     if (strlen($address->getFlatNo())) {
         $lines[] = sprintf('%s %s/%s', $address->getStreet(), $address->getStreetNo(), $address->getFlatNo());
     } else {
         $lines[] = sprintf('%s %s', $address->getStreet(), $address->getStreetNo(), '/' . $address->getFlatNo());
     }
     $lines[] = sprintf('%s, %s %s', $address->getCountry(), $address->getPostCode(), $address->getCity());
     return implode($lineSeparator, $lines);
 }