export declare function assert(truthyValue: any, message: string): void;
export declare function removeTrailingSlash(url: string): string;
export interface RetriableOptions {
    retryCount?: number;
    retryDelay?: number;
    retryCheck?: (err: any) => boolean;
}
export declare function retriable<T>(fn: () => Promise<T>, props?: RetriableOptions): Promise<T>;
export declare function generateUUID(globalThis?: any): string;
export declare function currentTimestamp(): number;
export declare function currentISOTime(): string;
export declare function safeSetTimeout(fn: () => void, timeout: number): any;