code: func (p *PathSpec) URLEscape(uri string) string {
  	// escape unicode letters
  	parsedURI, err := url.Parse(uri)
  	if err != nil {
  		// if net/url can not parse URL it means Sanitize works incorrectly
  		panic(err)
  	}
  	x := parsedURI.String()
  	return x
  }
docs: // URLEscape escapes unicode letters.