code: func NewJSONDecoder(r io.Reader) *json.Decoder {
  	decoder := json.NewDecoder(r)
  	decoder.UseNumber()
  	return decoder
  }
docs: // NewJSONDecoder returns a new decoder that reads from r.
  //
  // This function is intended to be used in place of the standard json.NewDecoder
  // when json.Number is required.