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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 get_private_name(self, f):
 """ get private protected name of an attribute :param str f: name of the private attribute to be accessed. """

        f = self.__swagger_rename__[f] if f in self.__swagger_rename__.keys() else f
        return '_' + self.__class__.__name__ + '__' + f