getBackDatedRangeFromNow function
Implementation
DateTimeRange getBackDatedRangeFromNow({int days = 7}) {
final now = DateTime.now();
final endDate = DateTime(now.year, now.month, now.day, 23, 59, 59);
final lastThirtyOneDay = endDate.subtract(Duration(days: days));
return DateTimeRange(start: lastThirtyOneDay, end: endDate);
}