code: def get_kde_http_proxy ():
      
      config_dir = get_kde_config_dir()
      if not config_dir:
          # could not find any KDE configuration directory
          return
      try:
          data = read_kioslaverc(config_dir)
          return data.get("http_proxy")
      except Exception as msg:
          log.debug(LOG_CHECK, "error getting HTTP proxy from KDE: %s", msg)
          pass
docs: Return host:port for KDE HTTP proxy if found, else None.