docstr: Tests None is returned there's an error retrieving the cuda version
  :return:
docstr_tok: ["Tests","None","is","returned","there","'s","an","error","retrieving","the","cuda","version",":","return",":"]
code: def test_get_cuda_version_not_found(self, mock):
      """
      Tests None is returned there's an error retrieving the cuda version
      :return:
      """
      not_sucessful = 255
      mock.side_effect = CalledProcessError(
          cmd="nvidia version command", returncode=not_sucessful
      )
      self.assertIsNone(get_cuda_version())
  
imports: import unittest
  from unittest.mock import MagicMock, mock_open, patch
  from artifact_repository import *
label_desc: Use image node_id 12 for calling the TestArtifactRepositoryTool obj's underlying member method code with example usage: obj.test_get_cuda_version_not_found(mock) without return types