@abc.abstractmethod<EOL><INDENT>def get_events_by_query(self, event_query):<DEDENT>
return<EOL>
Gets a list of ``Events`` matching the given event query.

        :param event_query: the event query
        :type event_query: ``osid.calendaring.EventQuery``
        :return: the returned ``EventList``
        :rtype: ``osid.calendaring.EventList``
        :raise: ``NullArgument`` -- ``event_query`` is ``null``
        :raise: ``OperationFailed`` -- unable to complete request
        :raise: ``PermissionDenied`` -- authorization failure
        :raise: ``Unsupported`` -- ``event_query`` is not of this service

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