code: public void marshall(CACertificateDescription cACertificateDescription, ProtocolMarshaller protocolMarshaller) {
  
          if (cACertificateDescription == null) {
              throw new SdkClientException("Invalid argument passed to marshall(...)");
          }
  
          try {
              protocolMarshaller.marshall(cACertificateDescription.getCertificateArn(), CERTIFICATEARN_BINDING);
              protocolMarshaller.marshall(cACertificateDescription.getCertificateId(), CERTIFICATEID_BINDING);
              protocolMarshaller.marshall(cACertificateDescription.getStatus(), STATUS_BINDING);
              protocolMarshaller.marshall(cACertificateDescription.getCertificatePem(), CERTIFICATEPEM_BINDING);
              protocolMarshaller.marshall(cACertificateDescription.getOwnedBy(), OWNEDBY_BINDING);
              protocolMarshaller.marshall(cACertificateDescription.getCreationDate(), CREATIONDATE_BINDING);
              protocolMarshaller.marshall(cACertificateDescription.getAutoRegistrationStatus(), AUTOREGISTRATIONSTATUS_BINDING);
              protocolMarshaller.marshall(cACertificateDescription.getLastModifiedDate(), LASTMODIFIEDDATE_BINDING);
              protocolMarshaller.marshall(cACertificateDescription.getCustomerVersion(), CUSTOMERVERSION_BINDING);
              protocolMarshaller.marshall(cACertificateDescription.getGenerationId(), GENERATIONID_BINDING);
              protocolMarshaller.marshall(cACertificateDescription.getValidity(), VALIDITY_BINDING);
          } catch (Exception e) {
              throw new SdkClientException("Unable to marshall request to JSON: " + e.getMessage(), e);
          }
      }
docs: Marshall the given parameter object.