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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 sdmethod(meth):
 """ This is a hack to monkey patch sdproperty to work as expected with instance methods. """

    sd = singledispatch(meth)

    def wrapper(obj, *args, **kwargs):
        return sd.dispatch(args[0].__class__)(obj, *args, **kwargs)

    wrapper.register = sd.register
    wrapper.dispatch = sd.dispatch
    wrapper.registry = sd.registry
    wrapper._clear_cache = sd._clear_cache
    functools.update_wrapper(wrapper, meth)
    return wrapper