Backupers: [
    {
        DirName: "daily"
        Predicate: "lambda date: bool(datetime.datetime.strptime(date, '%Y-%m-%d'))"
        Repeats: 90
    },
    {
        DirName: "weekly"
        Predicate: "lambda date: datetime.datetime.strptime(date, '%Y-%m-%d').weekday() in {4}"
        Repeats: 7
        Master: "daily"
    },
    {
        DirName: "monthly"
        Predicate: "lambda date: datetime.datetime.strptime(date, '%Y-%m-%d').day == 1"
        Repeats: 4
        Master: "daily"
    }
]
