code: func (a *API) FetchMetrics() (*[]Metric, error) {
  	result, err := a.Get(config.MetricPrefix)
  	if err != nil {
  		return nil, err
  	}
  
  	var metrics []Metric
  	if err := json.Unmarshal(result, &metrics); err != nil {
  		return nil, err
  	}
  
  	return &metrics, nil
  }
docs: // FetchMetrics retrieves all metrics available to API Token.