code: def test_marshal(self):
      import_helper.import_module("marshal")
  
      self.do_test("test_marshal")
  
imports: import subprocess
  import sys
  import unittest
  from test import support
  from test.support import import_helper
  from test.support import os_helper
label_desc: Use image node_id 7 for calling the AuditTest obj's underlying member method code with example usage: obj.test_marshal() without return types