code: func (ub *URLBuilder) BuildBaseURL() (string, error) {
  	route := ub.cloneRoute(RouteNameBase)
  
  	baseURL, err := route.URL()
  	if err != nil {
  		return "", err
  	}
  
  	return baseURL.String(), nil
  }
docs: // BuildBaseURL constructs a base url for the API, typically just "/v2/".