docs: public void marshall(PhoneNumberOrder phoneNumberOrder, ProtocolMarshaller protocolMarshaller) {
  
          if (phoneNumberOrder == null) {
              throw new SdkClientException("Invalid argument passed to marshall(...)");
          }
  
          try {
              protocolMarshaller.marshall(phoneNumberOrder.getPhoneNumberOrderId(), PHONENUMBERORDERID_BINDING);
              protocolMarshaller.marshall(phoneNumberOrder.getProductType(), PRODUCTTYPE_BINDING);
              protocolMarshaller.marshall(phoneNumberOrder.getStatus(), STATUS_BINDING);
              protocolMarshaller.marshall(phoneNumberOrder.getOrderedPhoneNumbers(), ORDEREDPHONENUMBERS_BINDING);
              protocolMarshaller.marshall(phoneNumberOrder.getCreatedTimestamp(), CREATEDTIMESTAMP_BINDING);
              protocolMarshaller.marshall(phoneNumberOrder.getUpdatedTimestamp(), UPDATEDTIMESTAMP_BINDING);
          } catch (Exception e) {
              throw new SdkClientException("Unable to marshall request to JSON: " + e.getMessage(), e);
          }
      }