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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 interleave_keys(a, b):
 """Interleave bits from two sort keys to form a joint sort key. Examples that are similar in both of the provided keys will have similar values for the key defined by this function. Useful for tasks with two text fields like machine translation or natural language inference. """

    def interleave(args):
        return ''.join([x for t in zip(*args) for x in t])
    return int(''.join(interleave(format(x, '016b') for x in (a, b))), base=2)