code: func (a *API) CreateAcknowledgement(cfg *Acknowledgement) (*Acknowledgement, error) {
  	if cfg == nil {
  		return nil, fmt.Errorf("Invalid acknowledgement config [nil]")
  	}
  
  	jsonCfg, err := json.Marshal(cfg)
  	if err != nil {
  		return nil, err
  	}
  
  	result, err := a.Post(config.AcknowledgementPrefix, jsonCfg)
  	if err != nil {
  		return nil, err
  	}
  
  	if a.Debug {
  		a.Log.Printf("[DEBUG] acknowledgement create, sending JSON: %s", string(jsonCfg))
  	}
  
  	acknowledgement := &Acknowledgement{}
  	if err := json.Unmarshal(result, acknowledgement); err != nil {
  		return nil, err
  	}
  
  	return acknowledgement, nil
  }
docs: // CreateAcknowledgement creates a new acknowledgement.