Phpro\SoapClient\Soap\TypeConverter\TypeConverterInterface::getTypeNamespace PHP Method

    public function getTypeNamespace();

 /**
  * @param TypeConverterInterface $converter
  *
  * @return string
  */
 private function serialize(TypeConverterInterface $converter)
 {
     return $converter->getTypeNamespace() . ':' . $converter->getTypeName();
 }