docs: public Observable<List<StatisticsModelInner>> listByAutomationAccountAsync(String resourceGroupName, String automationAccountName, String filter) {
          return listByAutomationAccountWithServiceResponseAsync(resourceGroupName, automationAccountName, filter).map(new Func1<ServiceResponse<List<StatisticsModelInner>>, List<StatisticsModelInner>>() {
              @Override
              public List<StatisticsModelInner> call(ServiceResponse<List<StatisticsModelInner>> response) {
                  return response.body();
              }
          });
      }