function getArchiveMetaPath (archiveOrKey) {
  var key /** @type string */
  if (typeof archiveOrKey === 'string') {
    key = archiveOrKey
  } else if (Buffer.isBuffer(archiveOrKey)) {
    key = datEncoding.toStr(archiveOrKey)
  } else {
    key = datEncoding.toStr(archiveOrKey.key)
  }
  return path.join(datPath, 'Archives', 'Meta', key.slice(0, 2), key.slice(2))
}
@description Get the path to an archive's files.
@param {string | Buffer | DaemonHyperdrive} archiveOrKey
@returns {string}