code: def test_lambda_in_return_value(self):
      def f():
          return lambda x: x + 1
  
      tr = self.transform(f, functions)
  
      result_l = tr()
      self.assertTrue(api.is_autograph_artifact(result_l))
  
file_path: DALI/dali/test/python/autograph/converters/test_functions.py
imports: from nvidia.dali._autograph.converters import functions
  from nvidia.dali._autograph.converters import return_statements
  from nvidia.dali._autograph.core import ag_ctx
  from nvidia.dali._autograph.core import converter
  from nvidia.dali._autograph.core import converter_testing
  from nvidia.dali._autograph.impl import api
label_desc: Use image node_id 6 for calling the FunctionTransformer obj's underlying member method code with example usage: obj.test_lambda_in_return_value() and returns: function