code: public Observable<StorageBundle> restoreStorageAccountAsync(String vaultBaseUrl, byte[] storageBundleBackup) {
          return restoreStorageAccountWithServiceResponseAsync(vaultBaseUrl, storageBundleBackup).map(new Func1<ServiceResponse<StorageBundle>, StorageBundle>() {
              @Override
              public StorageBundle call(ServiceResponse<StorageBundle> response) {
                  return response.body();
              }
          });
      }
docs: Restores a backed up storage account to a vault.
  Restores a backed up storage account to a vault. This operation requires the storage/restore permission.
  
  @param vaultBaseUrl The vault name, for example https://myvault.vault.azure.net.
  @param storageBundleBackup The backup blob associated with a storage account.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable to the StorageBundle object