/**
 * @module BackoffPolicy
 */
import { type BackoffPolicy, type DynamicBackoffPolicy } from "../../backoff-policies/_shared.js";
import { type ITimeSpan } from "../../time-span/contracts/_module.js";
/**
 *
 * IMPORT_PATH: `"@daiso-tech/core/backoff-policies"`
 */
export type ExponentialBackoffSettings = {
    /**
     * @default
     * ```ts
     * import { TimeSpan } from "@daiso-tech/core/time-span";
     *
     * TimeSpan.fromSeconds(60)
     * ```
     */
    maxDelay?: ITimeSpan;
    /**
     * @default
     * ```ts
     * import { TimeSpan } from "@daiso-tech/core/time-span";
     *
     * TimeSpan.fromSeconds(1)
     * ```
     */
    minDelay?: ITimeSpan;
    /**
     * @default 2
     */
    multiplier?: number;
    /**
     * You can pass jitter value to ensure the backoff will not execute at the same time.
     * If you pas null you can disable the jitrter.
     * @default 0.5
     */
    jitter?: number | null;
    /**
     * @internal
     * Should only be used for testing
     */
    _mathRandom?: () => number;
};
/**
 * @internal
 */
export declare function resolveExponentialBackoffSettings(settings: ExponentialBackoffSettings): Required<ExponentialBackoffSettings>;
/**
 * Exponential backoff policy with jitter
 *
 * IMPORT_PATH: `"@daiso-tech/core/backoff-policies"`
 */
export declare function exponentialBackoff(settings?: DynamicBackoffPolicy<ExponentialBackoffSettings>): BackoffPolicy;
/**
 * @internal
 */
export type SerializedExponentialBackoffSettings = {
    maxDelay?: number;
    minDelay?: number;
    multiplier?: number;
    jitter?: number | null;
    _mathRandom?: number;
};
/**
 * @internal
 */
export declare function serializeExponentialBackoffSettings(settings: ExponentialBackoffSettings): Required<SerializedExponentialBackoffSettings>;