asset_dir = self.create_tempdir('assets').full_path
    asset_file = os.path.join(asset_dir, 'vocab_file.txt')
    content = '\n'.join(['static', 'range', 'quantization'])
    file_io.write_string_to_file(filename=asset_file, file_content=content)

    # The resulting table looks like:
    # "static" -> 0
    # "range" -> 1
    # "quantization" -> 2
    # default -> -1