code: public Observable<Void> updateAsync(String vaultName, String resourceGroupName, BackupResourceConfigResourceInner parameters) {
          return updateWithServiceResponseAsync(vaultName, resourceGroupName, parameters).map(new Func1<ServiceResponse<Void>, Void>() {
              @Override
              public Void call(ServiceResponse<Void> response) {
                  return response.body();
              }
          });
      }
docs: Updates vault storage model type.
  
  @param vaultName The name of the recovery services vault.
  @param resourceGroupName The name of the resource group where the recovery services vault is present.
  @param parameters Vault storage config request
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the {@link ServiceResponse} object if successful.