import * as cdk from '../../../core';
/**
 * Throws an error if a duration is defined and not an integer number of seconds at or above a minimum.
 *
 * There is deliberately no upper bound. The timeouts validated here are governed by adjustable
 * service quotas (`Response timeout per origin`, `Keep-alive timeout per origin`), so the effective
 * maximum depends on the target account and can only be enforced by the service at deploy time.
 * A hardcoded ceiling rejects values the service would accept.
 *
 * The integer check is a defensive guard. `Duration.toSeconds()` already rejects fractional values,
 * so no input reaches it today.
 */
export declare function validateMinimumSeconds(name: string, min: number, duration?: cdk.Duration): void;