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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def get(config, archiver, revision):
 """ Get the data for a given revision. :param config: The configuration :type config: :class:`wily.config.WilyConfig` :param archiver: The name of the archiver type (e.g. 'git') :type archiver: ``str`` :param revision: The revision ID :type revision: ``str`` :return: The data record for that revision :rtype: ``dict`` """

    root = pathlib.Path(config.cache_path) / archiver
    # TODO : string escaping!!!
    with (root / f"{revision}.json").open("r") as rev_f:
        index = json.load(rev_f)
    return index