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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_output_meta(self):
 """ Save descriptive output meta data to a JSON file. """

        options = self.options
        file_path = os.path.join(options.outputdir, 'output.meta.json')
        with open(file_path, 'w') as outfile:
            json.dump(self.OUTPUT_META_DICT, outfile)