code: public ServiceFuture<OperationStatusResponseInner> beginStartAsync(String resourceGroupName, String vmScaleSetName, String instanceId, final ServiceCallback<OperationStatusResponseInner> serviceCallback) {
          return ServiceFuture.fromResponse(beginStartWithServiceResponseAsync(resourceGroupName, vmScaleSetName, instanceId), serviceCallback);
      }
docs: Starts a virtual machine in a VM scale set.
  
  @param resourceGroupName The name of the resource group.
  @param vmScaleSetName The name of the VM scale set.
  @param instanceId The instance ID of the virtual machine.
  @param serviceCallback the async ServiceCallback to handle successful and failed responses.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the {@link ServiceFuture} object