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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:
 async def get_setting(self, service: str, method: str, target: str):
 """Get a single setting for service. :param service: Service to query. :param method: Getter method for the setting, read from ApiMapping. :param target: Setting to query. :return: JSON response from the device. """

        return await self.services[service][method](target=target)