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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 cache_keys(keys):
 """Allow debugging via PyCharm"""

    d = known_keys()
    known_names = dict(zip(d.values(), d.keys()))
    for k in keys:
        i = (ord(k),) if len(k) == 1 else known_names[k]
        _key_cache.insert(0, i)