@abc.abstractmethod<EOL><INDENT>def get_event_smart_calendar_session(self, calendar_id):<DEDENT>
return<EOL>
Gets the session associated with the event smart calendar for the given calendar.

        :param calendar_id: the ``Id`` of the calendar
        :type calendar_id: ``osid.id.Id``
        :return: an ``EventSmartCalendarSession``
        :rtype: ``osid.calendaring.EventSmartCalendarSession``
        :raise: ``NotFound`` -- ``calendar_id`` not found
        :raise: ``NullArgument`` -- ``calendar_id`` is ``null``
        :raise: ``OperationFailed`` -- unable to complete request
        :raise: ``Unimplemented`` -- ``supports_event_smart_calendar()`` is ``false``

        *compliance: optional -- This method must be implemented if
        ``supports_event_smart_calendar()`` is ``true``.*