import { EngineService } from '../engine';
import { QuorumService } from '../quorum';
import { WorkerService } from '../worker';
import { QuorumMessage, QuorumMessageCallback, QuorumProfile, ThrottleOptions } from '../../types/quorum';
interface QuorumContext {
    engine: EngineService | null;
    quorum: QuorumService | null;
    workers: WorkerService[];
}
/**
 * Broadcasts a roll call across the mesh and collects responses.
 */
export declare function rollCall(instance: QuorumContext, delay?: number): Promise<QuorumProfile[]>;
/**
 * Broadcasts a throttle command to the mesh via the quorum channel.
 */
export declare function throttle(instance: QuorumContext, options: ThrottleOptions): Promise<boolean>;
/**
 * Publishes a message to every mesh member via the quorum channel.
 */
export declare function pubQuorum(instance: QuorumContext, quorumMessage: QuorumMessage): Promise<boolean>;
/**
 * Subscribes to the quorum channel.
 */
export declare function subQuorum(instance: QuorumContext, callback: QuorumMessageCallback): Promise<void>;
/**
 * Unsubscribes a callback previously registered with `subQuorum()`.
 */
export declare function unsubQuorum(instance: QuorumContext, callback: QuorumMessageCallback): Promise<void>;
export {};