code: def test_str_int(self):
      self.run_test(
          "def str_int(s): return int(s)", "12", str_int=[str]
      )
  
imports: from pythran.tests import TestEnv
  from pythran.typing import List
  import unittest
label_desc: Use image node_id 50 for calling the TestStr obj's underlying member method code with example usage: obj.test_str_int() without return types