code: func (hm HandlerMap) AddRoutes(prefix string, r *httprouter.Router) {
  	for httpRoute, h := range hm {
  		p := path.Join("/", prefix, httpRoute.Path)
  		r.HandlerFunc(httpRoute.Method, p, h)
  	}
  }
docs: // AddRoutes to the router dynamically, enabling drivers to add routes to an
  // application at runtime usually as part of their initialization.