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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 get_analog_map(self, cb=None):
 """ This method requests and returns an analog map. :param cb: Optional callback reference :returns: An analog map response or None if a timeout occurs """

        task = asyncio.ensure_future(self.core.get_analog_map())
        report = self.loop.run_until_complete(task)
        if cb:
            cb(report)
        else:
            return report