/**
 * lumiarq.throttle — built-in rate limiting middleware.
 *
 * Uses an in-memory sliding window counter keyed on the client IP address.
 * Default limits: 60 requests per 60-second window.
 *
 * In production, replace the in-memory store with a Redis or Durable Object
 * backed counter for distributed rate limiting across instances.
 *
 * Usage:
 * ```ts
 * Route.post('/auth/login', loginHandler, {
 *   middleware: ['lumiarq.throttle'],
 * })
 * ```
 */
export declare const throttleMiddleware: import("../types.js").MiddlewareDefinition;
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