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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 valuedispatch(func):
 """Decorates a function to dispatch handler of the value of the first argument. """

    registry = {}
    def dispatch(value):
        return registry.get(value, func)
    def register(value, func=None):
        if func is None:
            return lambda f: register(value, f)
        registry[value] = func
        return func
    def wrapper(*args, **kw):
        return dispatch(args[0])(*args, **kw)
    wrapper.register = register
    wrapper.dispatch = dispatch
    wrapper.registry = MappingProxyType(registry)
    update_wrapper(wrapper, func)
    return wrapper