code: public Observable<StorageAccountInformationInner> getAsync(String resourceGroupName, String accountName, String storageAccountName) {
          return getWithServiceResponseAsync(resourceGroupName, accountName, storageAccountName).map(new Func1<ServiceResponse<StorageAccountInformationInner>, StorageAccountInformationInner>() {
              @Override
              public StorageAccountInformationInner call(ServiceResponse<StorageAccountInformationInner> response) {
                  return response.body();
              }
          });
      }
docs: Gets the specified Azure Storage account linked to the given Data Lake Analytics account.
  
  @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 for which to retrieve the details.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable to the StorageAccountInformationInner object