def list_flags(self, only_name=False):
        """
        Determine the flag files associated with this pipeline.

        :param bool only_name: Whether to return only flag file name(s) (True),
            or full flag file paths (False); default False (paths)
        :return list[str]: flag files associated with this pipeline.
        """
        paths = glob.glob(os.path.join(self.outfolder, flag_name("*")))
        if only_name:
            return [os.path.split(p)[1] for p in paths]
        else:
            return paths