code: def test_string_float(self):
      self.assertRaises(ValueError, int, "1.2")
  
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 13 for calling the IntTestCases obj's underlying member method code with example usage: obj.test_string_float() without return types