code: public Observable<Page<StorageAccountInfoInner>> listStorageAccountsNextAsync(final String nextPageLink) {
          return listStorageAccountsNextWithServiceResponseAsync(nextPageLink)
              .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 nextPageLink The NextLink from the previous successful call to List operation.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable to the PagedList&lt;StorageAccountInfoInner&gt; object