docs: public void marshall(CreateAppRequest createAppRequest, ProtocolMarshaller protocolMarshaller) {
  
          if (createAppRequest == null) {
              throw new SdkClientException("Invalid argument passed to marshall(...)");
          }
  
          try {
              protocolMarshaller.marshall(createAppRequest.getName(), NAME_BINDING);
              protocolMarshaller.marshall(createAppRequest.getDescription(), DESCRIPTION_BINDING);
              protocolMarshaller.marshall(createAppRequest.getRepository(), REPOSITORY_BINDING);
              protocolMarshaller.marshall(createAppRequest.getPlatform(), PLATFORM_BINDING);
              protocolMarshaller.marshall(createAppRequest.getIamServiceRoleArn(), IAMSERVICEROLEARN_BINDING);
              protocolMarshaller.marshall(createAppRequest.getOauthToken(), OAUTHTOKEN_BINDING);
              protocolMarshaller.marshall(createAppRequest.getEnvironmentVariables(), ENVIRONMENTVARIABLES_BINDING);
              protocolMarshaller.marshall(createAppRequest.getEnableBranchAutoBuild(), ENABLEBRANCHAUTOBUILD_BINDING);
              protocolMarshaller.marshall(createAppRequest.getEnableBasicAuth(), ENABLEBASICAUTH_BINDING);
              protocolMarshaller.marshall(createAppRequest.getBasicAuthCredentials(), BASICAUTHCREDENTIALS_BINDING);
              protocolMarshaller.marshall(createAppRequest.getCustomRules(), CUSTOMRULES_BINDING);
              protocolMarshaller.marshall(createAppRequest.getTags(), TAGS_BINDING);
              protocolMarshaller.marshall(createAppRequest.getBuildSpec(), BUILDSPEC_BINDING);
          } catch (Exception e) {
              throw new SdkClientException("Unable to marshall request to JSON: " + e.getMessage(), e);
          }
      }