code: def _make_path(*parts):
      
      # TODO: maybe only allow some parts to be lists/tuples ?
      return "/" + "/".join(
          # preserve ',' and '*' in url for nicer URLs in logs
          quote_plus(_escape(p), b",*")
          for p in parts
          if p not in SKIP_IN_PATH
      )
docs: Create a URL string from parts, omit all `None` values and empty strings.
      Convert lists and tuples to comma separated values.