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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 param_name_list(self):
 """ returns the list of all parameter names :return: list of list of strings (for each light model separately) """

        name_list = []
        for func in self.func_list:
            name_list.append(func.param_names)
        return name_list