def METHOD_NAME(self) -> None:
    self._test_dir = tempfile.TemporaryDirectory()
    create_file = lambda prefix, suffix: tempfile.NamedTemporaryFile(
        dir=self._test_dir.name,
        prefix=prefix,
        suffix=suffix,
        delete=False,
    )
    create_file("01", ".py")
    create_file("02", ".py")
    create_file("03", ".py")
    create_file("04", ".rs")
    create_file(".05", ".py")