buf := &bytes.Buffer{}

	_, _ = fmt.Fprintf(buf, "TotalRequests:       %d\n", r.TotalRequests)
	_, _ = fmt.Fprintf(buf, "SuccessfulRequests:  %d\n", r.SuccessfulRequests)
	_, _ = fmt.Fprintf(buf, "PercentSuccess:      %f\n", r.PercentSuccess())
	_, _ = fmt.Fprintf(buf, "Errors:              %v\n", r.Error)

	return buf.String()
}

func (r *Result) add(result echo.CallResult, err error) {
	count := result.Responses.Len()