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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 generate_unique_host_id():
 """Generate a unique ID, that is somewhat guaranteed to be unique among all instances running at the same time."""

    host = ".".join(reversed(socket.gethostname().split(".")))
    pid = os.getpid()
    return "%s.%d" % (host, pid)