code: def test_is_git(self):
      self.assertTrue(git_util.is_git())
  
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 1 for calling the GitUtilTest obj's underlying member method code with example usage: obj.test_is_git() without return types