/// <reference types="node" />
import { GlobalFifoPromise } from "./GlobalFifoPromise";
import * as stream from "stream";
export declare abstract class FIFOService extends stream.Readable {
    private fifoPromiseHandler;
    constructor(fifoPromiseHandler: GlobalFifoPromise);
    pushFIFO<T>(operationId: string, p: () => Promise<T>): Promise<T>;
}