code: def create_migration(self, app, fixture_path):
          
          self.monkey_patch_migration_template(app, fixture_path)
  
          out = StringIO()
          management.call_command('makemigrations', app.label, empty=True, stdout=out)
  
          self.restore_migration_template()
  
          self.stdout.write(out.getvalue())
docs: Create a data migration for app that uses fixture_path.