code: func (r *Router) handleEventGetChannelMembers(msg *config.Message) {
  	if msg.Event != config.EventGetChannelMembers {
  		return
  	}
  	for _, gw := range r.Gateways {
  		for _, br := range gw.Bridges {
  			if msg.Account == br.Account {
  				cMembers := msg.Extra[config.EventGetChannelMembers][0].(config.ChannelMembers)
  				r.logger.Debugf("Syncing channelmembers from %s", msg.Account)
  				br.SetChannelMembers(&cMembers)
  				return
  			}
  		}
  	}
  }
docs: // handleEventGetChannelMembers handles channel members