/**
 * Copyright (c) 2018 mol* contributors, licensed under MIT, See LICENSE file for more info.
 *
 * Taken/adapted from DensityServer (https://github.com/dsehnal/DensityServer)
 *
 * @author David Sehnal <david.sehnal@gmail.com>
 */
export declare const State: {
    pendingQueries: number;
    shutdownOnZeroPending: boolean;
    querySerial: number;
};