code: public Observable<Page<StorageAccountInfoInner>> listStorageAccountsAsync(final String resourceGroupName, final String accountName) {
          return listStorageAccountsWithServiceResponseAsync(resourceGroupName, accountName)
              .map(new Func1<ServiceResponse<Page<StorageAccountInfoInner>>, Page<StorageAccountInfoInner>>() {
                  @Override
                  public Page<StorageAccountInfoInner> call(ServiceResponse<Page<StorageAccountInfoInner>> response) {
                      return response.body();
                  }
              });
      }
docs: Gets the first page of Azure Storage accounts, if any, linked to the specified Data Lake Analytics account. The response includes a link to the next page, if any.
  
  @param resourceGroupName The name of the Azure resource group that contains the Data Lake Analytics account.
  @param accountName The name of the Data Lake Analytics account for which to list Azure Storage accounts.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable to the PagedList&lt;StorageAccountInfoInner&gt; object