'Write a section marker line'

def _write_marker(self, indent_string, depth, entry, comment):

    return ('%s%s%s%s%s' % (indent_string, self._a_to_u(('[' * depth)), self._quote(self._decode_element(entry), multiline=False), self._a_to_u((']' * depth)), self._decode_element(comment)))
