#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""Deprecated compatibility stub.

History rows are now written exactly once by ``run_full.sh`` together with the
full collection.  Older installations may still have a crontab entry pointing
here; keeping this stub prevents that entry from creating duplicate snapshots.
"""


def main():
    return


if __name__ == '__main__':
    main()