code: public ServiceFuture<ExpressRouteCircuitPeeringInner> createOrUpdateAsync(String resourceGroupName, String circuitName, String peeringName, ExpressRouteCircuitPeeringInner peeringParameters, final ServiceCallback<ExpressRouteCircuitPeeringInner> serviceCallback) {
          return ServiceFuture.fromResponse(createOrUpdateWithServiceResponseAsync(resourceGroupName, circuitName, peeringName, peeringParameters), serviceCallback);
      }
docs: Creates or updates a peering in the specified express route circuits.
  
  @param resourceGroupName The name of the resource group.
  @param circuitName The name of the express route circuit.
  @param peeringName The name of the peering.
  @param peeringParameters Parameters supplied to the create or update express route circuit peering operation.
  @param serviceCallback the async ServiceCallback to handle successful and failed responses.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the {@link ServiceFuture} object