/**
 * @module Async
 */
import { TimeSpan } from "../../../utilities/_module-exports.js";
import { type BackoffPolicy } from "../../../async/backof-policies/_shared.js";
/**
 *
 * IMPORT_PATH: `"@daiso-tech/core/async"`
 * @group BackoffPolicies
 */
export type ConstantBackoffPolicySettings = {
    /**
     * @default 1000 milliseconds
     */
    delay?: TimeSpan;
    /**
     * @default {0.5}
     */
    jitter?: number;
    /**
     * Used only for testing
     * @internal
     */
    _mathRandom?: () => number;
};
/**
 * Constant backoff policy with jitter
 *
 * IMPORT_PATH: `"@daiso-tech/core/async"`
 * @group BackoffPolicies
 */
export declare function constantBackoffPolicy(settings?: ConstantBackoffPolicySettings | ((error: unknown) => ConstantBackoffPolicySettings)): BackoffPolicy;