public <CONFIGTYPE extends ConfigInstance> CONFIGTYPE getConfig(Class<CONFIGTYPE> clazz, String configId) {
        return model.getConfig(clazz, configId);
    }
Request config of a given type and id. This method gives the same config as the configserver would return to
its clients.

@param clazz Type of config to request.
@param configId The config id of the producer to ask for config.
@return A config object of the appropriate type with config values set.
config-model/src/main/java/com/yahoo/config/model/test/TestRoot.java