@abc.abstractmethod<EOL><INDENT>def get_events_by_sponsor_on_date(self, resource_id, from_, to):<DEDENT>
return<EOL>
Gets an ``EventList`` with the given sponsor where the given date range falls within the event dates
        inclusive.

        :param resource_id: a sponsor
        :type resource_id: ``osid.id.Id``
        :param from: start date
        :type from: ``osid.calendaring.DateTime``
        :param to: end date
        :type to: ``osid.calendaring.DateTime``
        :return: the returned ``Event`` list
        :rtype: ``osid.calendaring.EventList``
        :raise: ``InvalidArgument`` -- ``to`` is less than ``from``
        :raise: ``NullArgument`` -- ``resource_id, from,`` or ``to`` is ``null``
        :raise: ``OperationFailed`` -- unable to complete request
        :raise: ``PermissionDenied`` -- authorization failure

        *compliance: mandatory -- This method must be implemented.*