code: def test_pylong_str_to_int(self):
      v1 = 1 << 100_000
      s = str(v1)
      v2 = int(s)
      assert v1 == v2
      v3 = int(" -" + s)
      assert -v1 == v3
      v4 = int(" +" + s + " ")
      assert v1 == v4
      with self.assertRaises(ValueError) as err:
          int(s + "z")
      with self.assertRaises(ValueError) as err:
          int(s + "_")
      with self.assertRaises(ValueError) as err:
          int("_" + s)
  
imports: import sys
  import time
  import unittest
  from unittest import mock
  from test import support
  from test.test_grammar import VALID_UNDERSCORE_LITERALS, INVALID_UNDERSCORE_LITERALS
label_desc: Use image node_id 5 for calling the PyLongModuleTests obj's underlying member method code with example usage: obj.test_pylong_str_to_int() without return types