code: public Observable<UUID> addCustomPrebuiltIntentAsync(UUID appId, String versionId, PrebuiltDomainModelCreateObject prebuiltDomainModelCreateObject) {
          return addCustomPrebuiltIntentWithServiceResponseAsync(appId, versionId, prebuiltDomainModelCreateObject).map(new Func1<ServiceResponse<UUID>, UUID>() {
              @Override
              public UUID call(ServiceResponse<UUID> response) {
                  return response.body();
              }
          });
      }
docs: Adds a custom prebuilt intent model to the application.
  
  @param appId The application ID.
  @param versionId The version ID.
  @param prebuiltDomainModelCreateObject A model object containing the name of the custom prebuilt intent and the name of the domain to which this model belongs.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable to the UUID object