new_contents: from django.core.management import BaseCommand
  
  from corehq.apps.sms.tests.data_generator import create_fake_sms
  
  
  class Command(BaseCommand):
      help = """
          Generates a few fake SMS message models for a domain, for testing.
      """
  
      def add_arguments(self, parser):
          parser.add_argument('domain')
          parser.add_argument('num_messages', type=int, help="The number of SMS messages to create")
  
      def handle(self, domain, num_messages, **kwargs):
          for i in range(num_messages):
              create_fake_sms(domain)
          print(f'successfully created {num_messages} messages in {domain}' )
  
subject: add management command to generate fake sms data