'Access the last_month
:returns: twilio.rest.api.v2010.account.usage.record.last_month.LastMonthList
:rtype: twilio.rest.api.v2010.account.usage.record.last_month.LastMonthList'

@property
def last_month(self):

    if (self._last_month is None):
        self._last_month = LastMonthList(self._version, account_sid=self._solution['account_sid'])
    return self._last_month
