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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 save_checkpoint(self, config, population, species_set, generation):
 """ Save the current simulation state. """

        filename = '{0}{1}'.format(self.filename_prefix, generation)
        print("Saving checkpoint to {0}".format(filename))

        with gzip.open(filename, 'w', compresslevel=5) as f:
            data = (generation, config, population, species_set, random.getstate())
            pickle.dump(data, f, protocol=pickle.HIGHEST_PROTOCOL)