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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 stdio(containerizer, *args):
 """Connect containerizer class to command line args and STDIN Dispatches to an appropriate containerizer method based on the first argument and parses the input using an appropriate Protobuf type. launch < containerizer::Launch update < containerizer::Update usage < containerizer::Usage > mesos::ResourceStatistics wait < containerizer::Wait > containerizer::Termination destroy < containerizer::Destroy containers > containerizer::Containers recover Output serialization must be handled by the containerizer method (it doesn't necessarily happen at the end). Not really part of the containerizer protocol but exposed by Deimos as a subcommand: # Follows a Docker ID, PID, &c and exits with an appropriate, matching # exit code, in a manner specific to the containerizer observe <id> """

    try:
        name = args[0]
        method, proto = {"launch": (containerizer.launch, Launch),
                          "update": (containerizer.update, Update),
                          "usage": (containerizer.usage, Usage),
                          "wait": (containerizer.wait, Wait),
                          "destroy": (containerizer.destroy, Destroy),
                          "containers": (containerizer.containers, None),
                          "recover": (containerizer.recover, None),
                          "observe": (containerizer.observe, None)}[name]
    except IndexError:
        raise Err("Please choose a subcommand")
    except KeyError:
        raise Err("Subcommand %s is not valid for containerizers" % name)
    log.debug("%r", (method, proto))
    if proto is not None:
        return method(recordio.read(proto), *args[1:])
    else:
        return method(*args[1:])