def setUp(self):
        """Create temporary directories and files for testing."""
        self.temp_dir = tempfile.mkdtemp()
        self.file_content = "Hello, world!"

        # Create sample files to be archived
        with open(os.path.join(self.temp_dir, "sample.txt"), "w") as f:
            f.write(self.file_content)
Create temporary directories and files for testing.
keras/src/utils/file_utils_test.py