code: def test_exec(self):
      symbols = symtable.symtable("def f(x): return x", "?", "exec")
  
imports: import symtable
  import unittest
  from test import support
  from test.support import os_helper
label_desc: Use image node_id 24 for calling the SymtableTest obj's underlying member method code with example usage: obj.test_exec() without return types