code: func WrapHandler(handler *Handler) alice.Constructor {
  	return func(next http.Handler) (http.Handler, error) {
  		return http.HandlerFunc(func(rw http.ResponseWriter, req *http.Request) {
  			handler.ServeHTTP(rw, req, next)
  		}), nil
  	}
  }
docs: // WrapHandler Wraps access log handler into an Alice Constructor.