code: def test_str_id(self):
      self.run_test(
          "def str_id(x): return id(x) != 0", "hello", str_id=[str]
      )
  
imports: from pythran.tests import TestEnv
  from pythran.typing import List
  import unittest
label_desc: Use image node_id 51 for calling the TestStr obj's underlying member method code with example usage: obj.test_str_id() without return types