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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 case_insensitive_update(dct1, dct2):
 """ Given two dicts, updates the first one with the second, but considers keys that are identical except for case to be the same. No return value; this function modified dct1 similar to the update() method. """

    lowkeys = dict([(key.lower(), key) for key in dct1])
    for key, val in dct2.items():
        d1_key = lowkeys.get(key.lower(), key)
        dct1[d1_key] = val