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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 _generate_initial_score(self):
 """Runs the evaluation function for the initial pose."""

        self.current_energy = self.eval_fn(self.polypeptide, *self.eval_args)
        self.best_energy = copy.deepcopy(self.current_energy)
        self.best_model = copy.deepcopy(self.polypeptide)
        return