docs: public Observable<WorkflowRunInner> getAsync(String resourceGroupName, String workflowName, String runName) {
          return getWithServiceResponseAsync(resourceGroupName, workflowName, runName).map(new Func1<ServiceResponse<WorkflowRunInner>, WorkflowRunInner>() {
              @Override
              public WorkflowRunInner call(ServiceResponse<WorkflowRunInner> response) {
                  return response.body();
              }
          });
      }