def METHOD_NAME(fn: Callable[P, T]) -> Callable[P, T]:
    decorators = [
        click.option(
            "--blockstore",
            "-b",
            required=True,
            multiple=True,
            callback=lambda ctx, param, value: _parse_blockstore_params(value),
            envvar="PARSEC_BLOCKSTORE",
            metavar="CONFIG",
            help="""Blockstore configuration.