code: def test_global(self):
      def f(a):
          return a + global_var_for_test_global
  
      tr = TestTranspiler()
      f, _, _ = tr.transform(f, None)
  
      global global_var_for_test_global
      global_var_for_test_global = 1
      self.assertEqual(f(1), 0)
      global_var_for_test_global = 2
      self.assertEqual(f(1), -1)
  
imports: import threading
  import unittest
  import gast
  from nvidia.dali._autograph.pyct import transformer
  from nvidia.dali._autograph.pyct import transpiler
label_desc: Use image node_id 3 for calling the PyToPyTest obj's underlying member method code with example usage: obj.test_global() and returns: unknown