code: public Observable<BackupResourceConfigResourceInner> getAsync(String vaultName, String resourceGroupName) {
          return getWithServiceResponseAsync(vaultName, resourceGroupName).map(new Func1<ServiceResponse<BackupResourceConfigResourceInner>, BackupResourceConfigResourceInner>() {
              @Override
              public BackupResourceConfigResourceInner call(ServiceResponse<BackupResourceConfigResourceInner> response) {
                  return response.body();
              }
          });
      }
docs: Fetches resource storage config.
  
  @param vaultName The name of the recovery services vault.
  @param resourceGroupName The name of the resource group where the recovery services vault is present.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable to the BackupResourceConfigResourceInner object