code: func (wh *Webhook) Update(client *messagebird.Client) error {
  	var data struct {
  		Data []Webhook `json:"data"`
  	}
  	if err := client.Request(&data, http.MethodPut, apiRoot+"/webhooks/"+wh.ID, wh); err != nil {
  		return err
  	}
  	*wh = data.Data[0]
  	return nil
  }
docs: // Update syncs hte local state of a webhook to the MessageBird API.