code: public DataLakeStoreAccountInner beginUpdate(String resourceGroupName, String accountName, UpdateDataLakeStoreAccountParameters parameters) {
          return beginUpdateWithServiceResponseAsync(resourceGroupName, accountName, parameters).toBlocking().single().body();
      }
docs: Updates the specified Data Lake Store account information.
  
  @param resourceGroupName The name of the Azure resource group.
  @param accountName The name of the Data Lake Store account.
  @param parameters Parameters supplied to update the Data Lake Store account.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @throws CloudException thrown if the request is rejected by server
  @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent
  @return the DataLakeStoreAccountInner object if successful.