code: def propagate(ctx):
      
      data = []
      if ctx.type == 'file':
          if ctx.data_file:
              file_path = ctx.data_file
          else:
              file_path = os.path.join(ctx.data_dir, ctx.namespace + '.json')
  
          with open(file_path, 'r') as f:
              data = json.loads(f.read())
  
      swag_opts = {
          'swag.type': 'dynamodb'
      }
  
      swag = SWAGManager(**parse_swag_config_options(swag_opts))
  
      for item in data:
          time.sleep(2)
          swag.create(item, dry_run=ctx.dry_run)
docs: Transfers SWAG data from one backend to another