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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 as_method(self, docstring=""):
 """ Converts this action to a function or method. An optional docstring may be passed. """

        method = lambda obj, *args, **kwargs: self(obj, *args, **kwargs)
        if docstring:
            method.__doc__ = docstring
        return method