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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 _sia_cache_key(subsystem):
 """The cache key of the subsystem. This includes the native hash of the subsystem and all configuration values which change the results of ``sia``. """

    return (
        hash(subsystem),
        config.ASSUME_CUTS_CANNOT_CREATE_NEW_CONCEPTS,
        config.CUT_ONE_APPROXIMATION,
        config.MEASURE,
        config.PRECISION,
        config.VALIDATE_SUBSYSTEM_STATES,
        config.SINGLE_MICRO_NODES_WITH_SELFLOOPS_HAVE_PHI,
        config.PARTITION_TYPE,
    )