code: public Observable<AssetInner> getAsync(String resourceGroupName, String accountName, String assetName) {
          return getWithServiceResponseAsync(resourceGroupName, accountName, assetName).map(new Func1<ServiceResponse<AssetInner>, AssetInner>() {
              @Override
              public AssetInner call(ServiceResponse<AssetInner> response) {
                  return response.body();
              }
          });
      }
docs: Get an Asset.
  Get the details of an Asset in the Media Services account.
  
  @param resourceGroupName The name of the resource group within the Azure subscription.
  @param accountName The Media Services account name.
  @param assetName The Asset name.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable to the AssetInner object