code: def create_next_tag():
      
      date = datetime.utcnow()
      date_tag = '{}.{}.{}'.format(date.year, date.month, date.day)
      if date_tag in latest_tag(): # if there was an update already today
          latest = latest_tag().split('.') # split by spaces
          if len(latest) == 4: # if it is not the first revision of the day
              latest[-1]= str(int(latest[-1])+1)
          else: # if it is the first revision of the day
              latest+=['1']
          date_tag = '.'.join(latest)
      return date_tag
docs: creates a tag based on the date and previous tags