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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 steal_docstring_from(obj):
 """Decorator that lets you steal a docstring from another object Example ------- :: @steal_docstring_from(superclass.meth) def meth(self, arg):
 "Extra subclass documentation" pass In this case the docstring of the new 'meth' will be copied from superclass.meth, and if an additional dosctring was defined for meth it will be appended to the superclass docstring with a two newlines inbetween. """

    def deco(fn):
        docs = [obj.__doc__]
        if fn.__doc__:
            docs.append(fn.__doc__)
        fn.__doc__ = '\n\n'.join(docs)
        return fn

    return deco