code: func (kz *Kazoo) BrokerList() ([]string, error) {
  	brokers, err := kz.Brokers()
  	if err != nil {
  		return nil, err
  	}
  
  	result := make([]string, 0, len(brokers))
  	for _, broker := range brokers {
  		result = append(result, broker)
  	}
  
  	return result, nil
  }
docs: // BrokerList returns a slice of broker addresses that can be used to connect to
  // the Kafka cluster, e.g. using `sarama.NewAsyncProducer()`.