/**
 * Can add, update or remove a node from replication
 * @param req
 */
export declare function setNode(req: object): Promise<string>;
/**
 * Is called by other node when an add_node operation is requested
 * @param req
 */
export declare function addNodeBack(req: any): Promise<any>;
/**
 * Is called by other node when remove_node is requested and
 * system tables are not replicating
 */
export declare function removeNodeBack(req: any): Promise<void>;
