code: func (chat *Chat) BotWasKickedOrStopped() bool {
  	ps, _ := chat.protectedSettings()
  
  	if ps == nil {
  		return false
  	}
  
  	if ps.BotStoppedOrKickedAt != nil {
  		return true
  	}
  	return false
  }
docs: // OAuthValid checks if OAuthToken for service is set