code: public Observable<List<BatchConfigurationInner>> listAsync(String resourceGroupName, String integrationAccountName) {
          return listWithServiceResponseAsync(resourceGroupName, integrationAccountName).map(new Func1<ServiceResponse<List<BatchConfigurationInner>>, List<BatchConfigurationInner>>() {
              @Override
              public List<BatchConfigurationInner> call(ServiceResponse<List<BatchConfigurationInner>> response) {
                  return response.body();
              }
          });
      }
docs: List the batch configurations for an integration account.
  
  @param resourceGroupName The resource group name.
  @param integrationAccountName The integration account name.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable to the List&lt;BatchConfigurationInner&gt; object