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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_fixed_param_names(self) -> List[str]: """ Get the fixed params of the network. :return: List of strings, names of the layers """

        args = set(self.args.keys()) | set(self.auxs.keys())

        return list(args & set(self.sym.list_arguments()))