code: func StringToLabels(s string) *mesos.Labels {
  	labels := &mesos.Labels{Labels: make([]*mesos.Label, 0)}
  	if s == "" {
  		return labels
  	}
  	pairs := strings.Split(s, ";")
  	for _, pair := range pairs {
  		kv := strings.Split(pair, "=")
  		key, value := kv[0], kv[1]
  		label := &mesos.Label{Key: proto.String(key), Value: proto.String(value)}
  		labels.Labels = append(labels.Labels, label)
  	}
  	return labels
  }
docs: // Convert param string like "param1=value1;param2=value2" to mesos.Labels