docs: public Observable<ServiceResponse<OperationStatus>> updateHierarchicalEntityChildWithServiceResponseAsync(UUID appId, String versionId, UUID hEntityId, UUID hChildId, String name) {
          if (this.client.endpoint() == null) {
              throw new IllegalArgumentException("Parameter this.client.endpoint() is required and cannot be null.");
          }
          if (appId == null) {
              throw new IllegalArgumentException("Parameter appId is required and cannot be null.");
          }
          if (versionId == null) {
              throw new IllegalArgumentException("Parameter versionId is required and cannot be null.");
          }
          if (hEntityId == null) {
              throw new IllegalArgumentException("Parameter hEntityId is required and cannot be null.");
          }
          if (hChildId == null) {
              throw new IllegalArgumentException("Parameter hChildId is required and cannot be null.");
          }
          HierarchicalChildModelUpdateObject hierarchicalChildModelUpdateObject = new HierarchicalChildModelUpdateObject();
          hierarchicalChildModelUpdateObject.withName(name);
          String parameterizedHost = Joiner.on(", ").join("{Endpoint}", this.client.endpoint());
          return service.updateHierarchicalEntityChild(appId, versionId, hEntityId, hChildId, this.client.acceptLanguage(), hierarchicalChildModelUpdateObject, parameterizedHost, this.client.userAgent())
              .flatMap(new Func1<Response<ResponseBody>, Observable<ServiceResponse<OperationStatus>>>() {
                  @Override
                  public Observable<ServiceResponse<OperationStatus>> call(Response<ResponseBody> response) {
                      try {
                          ServiceResponse<OperationStatus> clientResponse = updateHierarchicalEntityChildDelegate(response);
                          return Observable.just(clientResponse);
                      } catch (Throwable t) {
                          return Observable.error(t);
                      }
                  }
              });
      }