This file is indexed.

/usr/include/KF5/KDeclarative/CalendarEvents/CalendarEventsPlugin is in libkf5declarative-dev 5.44.0-0ubuntu3.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

1
#include "calendarevents/calendareventsplugin.h"