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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 normalize_signature(func):
 """Decorator. Combine args and kwargs. Unpack single item tuples."""


    @wraps(func)
    def wrapper(*args, **kwargs):
        if kwargs:
            args = args, kwargs

        if len(args) is 1:
            args = args[0]

        return func(args)

    return wrapper