code: func GetBalancer(policy fab.EventServicePolicy) lbp.LoadBalancePolicy {
  	switch policy.Balancer {
  	case fab.RoundRobin:
  		logger.Debugf("Using round-robin load balancer.")
  		return lbp.NewRoundRobin()
  	case fab.Random:
  		logger.Debugf("Using random load balancer.")
  		return lbp.NewRandom()
  	default:
  		logger.Debugf("Balancer not specified. Using random load balancer.")
  		return lbp.NewRandom()
  	}
  }
docs: // GetBalancer returns the configured load balancer