public MessageBusParams setRoutingConfigId(String configId) {
        routingConfigId = configId;
        return this;
    }
Sets the id to resolve to routing config. This has a proper default value that holds for Vespa applications, and
can therefore be left unset.

@param configId The config id.
@return This object for chaining.
documentapi/src/main/java/com/yahoo/documentapi/messagebus/MessageBusParams.java