text: from django.core.management.base import BaseCommand
  
  
  class Command(BaseCommand):
      def add_arguments(self, parser):
          subparsers_1 = parser.add_subparsers(dest='subcommand_1')
          parser_foo_1 = subparsers_1.add_parser('foo_1')
          subparsers_2 = parser_foo_1.add_subparsers(dest='subcommand_2')
          parser_foo_2 = subparsers_2.add_parser('foo_2')
          parser_foo_2.add_argument('--bar', required=True)
  
      def handle(self, *args, **options):
          self.stdout.write(','.join(options))
  