new_contents: # coding=utf8
  from django.core.management.base import BaseCommand, CommandError
  from certificates.generator import *
  from api.models import Event
  
  class Command(BaseCommand):
      args = '<event-id> [<event-id>, ...]'
      help = """
      Generates or regenerates a certificate for a given event.
      """
  
      def handle(self, *args, **options):
          if not args:
              self.stderr.write('Please provide at least one event ID.')
  
          for event_id in args:
              self.stdout.write('Regenerating the certificate for event ID %s...' % event_id)
  
              try:
                  event = Event.objects.get(pk=int(event_id))
              except Event.DoesNotExist:
                  self.stderr.write('Event ID "%s" does not exist.' % event_id)
                  continue
  
              path = generate_certificate_for(event.pk, event.certificate_file_name(), event.name_for_certificate)
  
              if path:
                  self.stdout.write('Certificate for event ID %s geenrated successfully: %s' % (event_id, path))
              else:
                  self.stderr.write('An error occurred while generating the certificate.')
  
subject: Add a command for manual certificate regeneration