code: def test_is_not_git(self):
      self.assertFalse(git_util.is_git(tempfile.gettempdir()))
  
file_path: studio/tests/git_util_test.py
imports: import unittest
  import tempfile
  import os
  import subprocess
  import uuid
  import re
  from studio import git_util
label_desc: Use image node_id 2 for calling the GitUtilTest obj's underlying member method code with example usage: obj.test_is_not_git() without return types