type ParentMessage = {
    identifier: number;
    action: string;
    timeout?: number;
    times: number;
    random?: boolean;
    terminate?: boolean;
};
type ProducerResponse = {
    identifier: number;
    action: string;
    timeout?: number;
    times: number;
    random?: boolean;
    result?: string[];
};
declare let shuttingDown: boolean;
declare const completeAndExit: (logMessage?: string) => void;