docstr: Test that result of single None are NIL UUID, regardless namespace.
docstr_tok: ["Test","that","result","of","single","None","are","NIL","UUID",",","regardless","namespace","."]
code: def test_nil_uuid(self):
      """Test that result of single None are NIL UUID, regardless namespace."""
      assert (
          generate_uuid(None, **self.kwargs)
          == "00000000-0000-0000-0000-000000000000"
      )
  
file_path: airflow/tests/providers/amazon/aws/utils/test_identifiers.py
imports: from __future__ import annotations
  import random
  import string
  import uuid
  import pytest
  from airflow.providers.amazon.aws.utils.identifiers import generate_uuid
  from airflow.utils.types import NOTSET
label_desc: Use image node_id 3 for calling the TestGenerateUuid obj's underlying member method code with example usage: obj.test_nil_uuid() without return types