Returns instance of archiver class specific to given kind

    :param kind: archive kind

def get_archiver(self, kind):
    """
    Returns instance of archiver class specific to given kind

    :param kind: archive kind
    """

    archivers = {
        'tar': TarArchiver,
        'tbz2': Tbz2Archiver,
        'tgz': TgzArchiver,
        'zip': ZipArchiver,
    }

    return archivers[kind]()