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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 set_param(self, name, value):
 """Set a GO-PCA Server parameter. Parameters name: str The parameter name. value: ? The parameter value. """

        if name not in self.param_names:
            raise ValueError('No GO-PCA Server parameter named "%s"!' %(param))
        self.__params[name] = value