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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 mine_items(identifiers, params=None, callback=None, **kwargs):
 """Concurrently retrieve metadata from Archive.org items. :param identifiers: A set of Archive.org item identifiers to mine. :type identifiers: iterable :param params: (optional) The URL parameters to send with each request. :type params: dict :param callback: (optional) A callback function to be called on each :py:class:`aiohttp.client.ClientResponse`. :param \*\*kwargs: (optional) Arguments that ``get_miner`` takes. """

    miner = ItemMiner(**kwargs)
    try:
        miner.loop.run_until_complete(miner.mine_items(identifiers, params, callback))
    except RuntimeError:
        miner.loop.close()