def assigned_add_ons(self):
        """
        Access the assigned_add_ons

        :returns: twilio.rest.api.v2010.account.incoming_phone_number.assigned_add_on.AssignedAddOnList
        :rtype: twilio.rest.api.v2010.account.incoming_phone_number.assigned_add_on.AssignedAddOnList
        """
        if self._assigned_add_ons is None:
            self._assigned_add_ons = AssignedAddOnList(
                self._version,
                account_sid=self._solution['account_sid'],
                resource_sid=self._solution['sid'],
            )
        return self._assigned_add_ons
Access the assigned_add_ons

        :returns: twilio.rest.api.v2010.account.incoming_phone_number.assigned_add_on.AssignedAddOnList
        :rtype: twilio.rest.api.v2010.account.incoming_phone_number.assigned_add_on.AssignedAddOnList