def last(self):
        if self and self[-1] is not None:
            return normalize_error(self[-1])
Attempts to send a DELETE message with the wrong credentials.
dataset/ETHPy150Open itdxer/neupy/neupy/network/base.py/ErrorHistoryList.last--crossover with--dataset/ETHPy150Open mozilla/moztrap/tests/case/api/crud.py/ApiCrudCases.test_delete_fails_with_wrong_perms