code: def setup_url(self, url):
          r
  
          self.url = bytes(url, "utf8")
  
          res = librtmp.RTMP_SetupURL(self.rtmp, self.url)
          if res < 1:
              raise RTMPError("Unable to parse URL")
docs: r"""Attempt to parse a RTMP URL.
  
          Additional options may be specified by appending space-separated
          key=value pairs to the URL. Special characters in values may need
          to be escaped to prevent misinterpretation by the option parser.
          The escape encoding uses a backslash followed by two hexadecimal
          digits representing the ASCII value of the character. E.g., spaces
          must be escaped as `\\20` and backslashes must be escaped as `\\5c`.
  
          :param url: str, A RTMP URL in the format `rtmp[t][e|s]://hostname[:port][/app[/playpath]]`
  
          Raises :exc:`RTMPError` if URL parsing fails.