code: def test_flavors(flavors, expected):
      with mock_ml_package_versions_yml(
          MOCK_YAML_SOURCE, "{}"
      ) as path_args:
          flavors_args = (
              [] if flavors is None else ["--flavors", flavors]
          )
          matrix = generate_matrix([*path_args, *flavors_args])
          flavors = {x.flavor for x in matrix}
          assert flavors == expected
  
imports: import functools
  import re
  import tempfile
  from contextlib import contextmanager
  from pathlib import Path
  from unittest import mock
  import pytest
  from dev.set_matrix import generate_matrix
label_desc: Use image node_id 3 for calling a global function with example usage: test_flavors(flavors, expected) without return types