code: def get_request_url(environ):
      # type: (Dict[str, str]) -> str
      
      return "%s://%s/%s" % (
          environ.get("wsgi.url_scheme"),
          get_host(environ),
          wsgi_decoding_dance(environ.get("PATH_INFO") or "").lstrip("/"),
      )
docs: Return the absolute URL without query string for the given WSGI
      environment.