def getMail(self, parse=False):
        msg = self.smtp.mailQueue.get(block=False)

        if parse:
            return email.message_from_string(msg)
        else:
            return msg
Assert that a DataFrame has ``dtypes``
dataset/ETHPy150Open girder/girder/tests/mock_smtp.py/MockSmtpReceiver.getMail--crossover with--dataset/ETHPy150Open TomAugspurger/engarde/engarde/checks.py/has_dtypes