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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_service_keys(self, service_name):
 """ Returns a flat list of the names of the service keys for the given service. """

        keys = []
        for key in self._get_service_keys(service_name)['resources']:
            keys.append(key['entity']['name'])

        return keys