code: public Observable<Page<ServiceOperationInner>> listAsync() {
          return listWithServiceResponseAsync()
              .map(new Func1<ServiceResponse<Page<ServiceOperationInner>>, Page<ServiceOperationInner>>() {
                  @Override
                  public Page<ServiceOperationInner> call(ServiceResponse<Page<ServiceOperationInner>> response) {
                      return response.body();
                  }
              });
      }
docs: Get available resource provider actions (operations).
  Lists all available actions exposed by the Data Migration Service resource provider.
  
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable to the PagedList&lt;ServiceOperationInner&gt; object