/**
 * Interpolated sliding-window rate limiter.
 *
 * Approximates a true sliding window using two fixed buckets — the current
 * window's counter plus a weighted slice of the previous window's counter,
 * where the weight is the fraction of the previous window still overlapping
 * with "now". This costs the same as fixed (~1 write) but eliminates the
 * boundary burst that plagues fixed windows.
 *
 * Accuracy: ~1% off ground truth in the worst case (Cloudflare / Kong /
 * Envoy all ship this variant as their default). For strict per-user API
 * quotas this is normally within a few requests of the true count.
 *
 * @param {import('../index.js').WindowLimiterConfig} config
 * @returns {import('../index.js').Limiter}
 */
export function sliding(config: import("../index.js").WindowLimiterConfig): import("../index.js").Limiter;