PytestWarning: TASK_ELEMENTS value

tests/test_elements_worker/test_cli.py::test_cli_default
  /home/yschneider/dev/workers/base-worker/tests/test_elements_worker/test_cli.py:27: PytestWarning: Value of environment variable TASK_ELEMENTS type should be str, but got PosixPath('/tmp/tmpf5zugd8m') (type: PosixPath); converted to str implicitly
    monkeypatch.setenv("TASK_ELEMENTS", path)