code: func GetBroadcastClient() (BroadcastClient, error) {
  	oc, err := NewOrdererClientFromEnv()
  	if err != nil {
  		return nil, err
  	}
  	bc, err := oc.Broadcast()
  	if err != nil {
  		return nil, err
  	}
  
  	return &broadcastClient{client: bc}, nil
  }
docs: // GetBroadcastClient creates a simple instance of the BroadcastClient interface