/usr/share/doc/debarchiver/examples/debarchiver.cron.d is in debarchiver 0.11.0.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 | #
# Regular cron jobs for the debarchiver package
#
# Run the archiver every five minutes.
*/5 * * * * debarchiver test -x /usr/bin/debarchiver && /usr/bin/debarchiver -so | logger -t debarchiver -p daemon.info
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