title: ICalendar ICS sequence of event
body: <p>Good morning, I have a python script that performs webscraping and create a ics file with multiple events for the current month, now I need to update the calendar daily, I would like that when I import the updated file the events are replaced by the new ones and not duplicated.
  I saw that there is the sequence command, the problem is that I do not know how to give the sequence, because the script can not know what is its sequence, I put as number the date and time together (202230040851), so that when I create a new file the sequence number is always greater than the previous, the problem is that google calendar does not import the file ...
  do you have any suggestions to solve the problem?
  Thanks</p>