code: func (h *HTTPBin) Get(w http.ResponseWriter, r *http.Request) {
  	resp := &getResponse{
  		Args:    r.URL.Query(),
  		Headers: getRequestHeaders(r),
  		Origin:  getOrigin(r),
  		URL:     getURL(r).String(),
  	}
  	body, _ := json.Marshal(resp)
  	writeJSON(w, body, http.StatusOK)
  }
docs: // Get handles HTTP GET requests