code: public Observable<StorageContainerInner> getStorageContainerAsync(String resourceGroupName, String accountName, String storageAccountName, String containerName) {
          return getStorageContainerWithServiceResponseAsync(resourceGroupName, accountName, storageAccountName, containerName).map(new Func1<ServiceResponse<StorageContainerInner>, StorageContainerInner>() {
              @Override
              public StorageContainerInner call(ServiceResponse<StorageContainerInner> response) {
                  return response.body();
              }
          });
      }
docs: Gets the specified Azure Storage container associated with the given Data Lake Analytics and Azure Storage accounts.
  
  @param resourceGroupName The name of the Azure resource group.
  @param accountName The name of the Data Lake Analytics account.
  @param storageAccountName The name of the Azure storage account from which to retrieve the blob container.
  @param containerName The name of the Azure storage container to retrieve
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable to the StorageContainerInner object