code: def test_function_with_args_only(self):
      def f(f, a, b):
          return f(a, b) + 300
  
      tr, mock = self._transform_with_mock(f)
  
      self.assertEqual(tr(lambda a, b: a + b, 1, 20), 321)
      self.assertListEqual(mock.calls, [((1, 20), 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 7 for calling the CallTreesTest obj's underlying member method code with example usage: obj.test_function_with_args_only() and returns: unknown