def __len__(self):
        self._refresh()
        return len(self._toc)
identifier_list : IDENTIFIER
dataset/ETHPy150Open babble/babble/include/jython/Lib/mailbox.py/Maildir.__len__--crossover with--dataset/ETHPy150Open ardekantur/pyglet/tools/wraptypes/preprocessor.py/PreprocessorGrammar.p_identifier_list