export declare function delay(ms: number): Promise<void>;
export declare function exponentialBackoffDelay(currentFailureCount: number, minDelay: number, maxDelay: number, maxFailureCount: number): number;
export type BackoffFunc = <T>(callback: () => Promise<T>) => Promise<T>;
export declare function createBackoff(options?: {
    onError?: (error: unknown, failuresCount: number) => void;
    minDelay?: number;
    maxDelay?: number;
    maxFailureCount?: number;
}): BackoffFunc;
export declare const backoff: BackoffFunc;
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