'Access the monthly
:returns: twilio.rest.api.v2010.account.usage.record.monthly.MonthlyList
:rtype: twilio.rest.api.v2010.account.usage.record.monthly.MonthlyList'

@property
def monthly(self):

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