import { EventEmitter } from 'node:events';
import { Logger } from '@terascope/core-utils';
import * as i from './interfaces.js';
export declare class Core extends EventEmitter {
    closed: boolean;
    protected networkLatencyBuffer: number;
    protected actionTimeout: number;
    protected logger: Logger;
    constructor(opts: i.CoreOptions);
    close(): void;
    protected handleSendResponse(sent: i.Message, sendAbortSignal?: boolean): Promise<i.Message | null>;
    protected handleResponse(socket: i.SocketEmitter, eventName: string, fn: i.MessageHandler): void;
    isClientReady(clientId?: string): boolean;
    waitForClientReady(clientId: string, timeout?: number): Promise<boolean>;
    getTimeoutWithMax(maxTimeout: number): number;
    getTimeout(timeout?: number): number;
    emit(eventName: string, msg: i.EventMessage): void;
    onceWithTimeout(eventName: string, timeout?: number, abortSignal?: AbortSignal): Promise<any>;
}
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