export declare class Util {
    static expoBackoffTime(attempt: number): number;
    static getRandomBetween(min: number, max: number): number;
    static clamp(val: number, min: number, max: number): number;
    /**
     * Checks if running inside NodeJS
     */
    static isNode(): boolean;
    static isDocker(): boolean;
    static parseBool(value: any): boolean;
    /**
     * Checks if the provided object is a function
     */
    static isFunction(obj: any): boolean;
    static sleep(ms: number): Promise<void>;
}