export interface RetryOptions {
    maxAttempts: number;
    delayMs: number;
}
export declare const utils: {
    sleep(ms: number): Promise<void>;
    retry<T>(fn: () => Promise<T>, options: RetryOptions): Promise<T>;
    parallel<T>(tasks: Array<() => Promise<T>>): Promise<T[]>;
    sequence<T>(tasks: Array<() => Promise<T>>): Promise<T[]>;
};
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