import { ILogger } from '@imqueue/core';
export declare const SIGNALS: string[];
export declare const IMQ_TMP_DIR: string;
export declare const IMQ_PID_DIR: string;
/**
 * Returns increment-based process identifier for a given name
 *
 * @param {string} name - name of a service to create pid file for
 * @param {string} path - directory to
 * @returns {number}
 */
export declare function pid(name: string, path?: string): number;
/**
 * Removes pid file for a given name and id
 *
 * @param {string} name
 * @param {number} id
 * @param {ILogger} logger
 * @param {string} [path]
 */
export declare function forgetPid(name: string, id: number, logger: ILogger, path?: string): void;