public static function daysAgo()
    {
        return self::getOrCreate('days-ago', function () {
            return RangeRule::createForNegativeValues(Unit::DAY, Unit::DAY * 7 - 1, [Results::class, 'calculateDaysAgo']);
        });
    }
public static function daysAgo()
    {
        return self::getOrCreate('days-ago', function () {
            return RangeRule::createForNegativeValues(Unit::DAY, Unit::DAY * 7 - 1, [Results::class, 'calculateDaysAgo']);
        });
    }
public static function daysAgo ( ) { return self :: getOrCreate ( 'days-ago' , function ( ) { return RangeRule :: createForNegativeValues ( Unit :: DAY , Unit :: DAY * 7 - 1 , [ Results :: class , 'calculateDaysAgo' ] ) ; } ) ; }
Produces "days ago" if diff is between 24 and 7 days to the past

@return RuleInterface
Produces days ago if diff is between 24 and 7 days to the past