code: def test_empty_list(self):
      def f():
          return []
  
      tr = self.transform(f, lists, operator_overload=OperatorList())
  
      tl = tr()
      # Empty tensor lists cannot be evaluated or stacked.
      self.assertIsInstance(tl, TestList)
  
imports: from nvidia.dali._autograph.converters import directives
  from nvidia.dali._autograph.converters import lists
  from nvidia.dali._autograph.core import converter_testing
  from nvidia.dali._autograph.utils import hooks
label_desc: Use image node_id 1 for calling the ListTest obj's underlying member method code with example usage: obj.test_empty_list() and returns: list