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

        :returns: twilio.rest.api.v2010.account.incoming_phone_number.assigned_add_on.assigned_add_on_extension.AssignedAddOnExtensionList
        :rtype: twilio.rest.api.v2010.account.incoming_phone_number.assigned_add_on.assigned_add_on_extension.AssignedAddOnExtensionList
        """
        if self._extensions is None:
            self._extensions = AssignedAddOnExtensionList(
                self._version,
                account_sid=self._solution['account_sid'],
                resource_sid=self._solution['resource_sid'],
                assigned_add_on_sid=self._solution['sid'],
            )
        return self._extensions
def extensions ( self ) : if self . _extensions is None : self . _extensions = AssignedAddOnExtensionList ( self . _version , account_sid = self . _solution [ 'account_sid' ] , resource_sid = self . _solution [ 'resource_sid' ] , assigned_add_on_sid = self . _solution [ 'sid' ] , ) return self . _extensions
Access the extensions

        :returns: twilio.rest.api.v2010.account.incoming_phone_number.assigned_add_on.assigned_add_on_extension.AssignedAddOnExtensionList
        :rtype: twilio.rest.api.v2010.account.incoming_phone_number.assigned_add_on.assigned_add_on_extension.AssignedAddOnExtensionList