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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 return_data(self, data, format=None):
 """Format and return data appropriate to the requested API format. data: The data retured by the api request """

        if format is None:
            format = self.format
        if format == "json":
            formatted_data = json.loads(data)
        else:
            formatted_data = data
        return formatted_data