code: func (b *Bdiscord) useWebhook() bool {
  	if b.GetString("WebhookURL") != "" {
  		return true
  	}
  
  	b.channelsMutex.RLock()
  	defer b.channelsMutex.RUnlock()
  
  	for _, channel := range b.channelInfoMap {
  		if channel.Options.WebhookURL != "" {
  			return true
  		}
  	}
  	return false
  }
docs: // useWebhook returns true if we have a webhook defined somewhere