code: def test_function_with_expression_in_argument(self):
      def f(f, g):
          return f(g() + 20) + 4000
  
      tr, mock = self._transform_with_mock(f)
  
      self.assertEqual(tr(lambda x: x + 300, lambda: 1), 4321)
      self.assertListEqual(
          mock.calls,
          [
              ((), None),
              ((21,), None),
          ],
      )
  
imports: import imp
  from nvidia.dali._autograph.converters import call_trees
  from nvidia.dali._autograph.converters import functions
  from nvidia.dali._autograph.core import converter_testing
label_desc: Use image node_id 3 for calling the CallTreesTest obj's underlying member method code with example usage: obj.test_function_with_expression_in_argument() and returns: unknown