docs: public void marshall(ListPhoneNumbersRequest listPhoneNumbersRequest, ProtocolMarshaller protocolMarshaller) {
  
          if (listPhoneNumbersRequest == null) {
              throw new SdkClientException("Invalid argument passed to marshall(...)");
          }
  
          try {
              protocolMarshaller.marshall(listPhoneNumbersRequest.getStatus(), STATUS_BINDING);
              protocolMarshaller.marshall(listPhoneNumbersRequest.getProductType(), PRODUCTTYPE_BINDING);
              protocolMarshaller.marshall(listPhoneNumbersRequest.getFilterName(), FILTERNAME_BINDING);
              protocolMarshaller.marshall(listPhoneNumbersRequest.getFilterValue(), FILTERVALUE_BINDING);
              protocolMarshaller.marshall(listPhoneNumbersRequest.getMaxResults(), MAXRESULTS_BINDING);
              protocolMarshaller.marshall(listPhoneNumbersRequest.getNextToken(), NEXTTOKEN_BINDING);
          } catch (Exception e) {
              throw new SdkClientException("Unable to marshall request to JSON: " + e.getMessage(), e);
          }
      }