import type { RateLimitEntry } from "./types.js";
/** Maximum UTF-16 code units accepted by a rate-limit key. */
export declare const MAX_RATE_LIMIT_KEY_LENGTH = 1024;
export declare function requireRateLimitKey(value: unknown, name?: string): string;
export declare function requireRateLimitWindowMs(value: unknown): number;
export declare function requireRateLimitEntry(value: unknown): RateLimitEntry;
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