code: func AddNodeWithService(serviceName string) AddNodeOption {
  	return func(o *adapters.NodeConfig) {
  		o.Services = append(o.Services, serviceName)
  	}
  }
docs: // AddNodeWithService specifies a service that should be
  // started on a node. This option can be repeated as variadic
  // argument toe AddNode and other add node related methods.
  // If AddNodeWithService is not specified, all services will be started.