/**
 * Holds inbound payloads keyed by frame number, releasing them only after they
 * have aged enough that the consumer has high confidence ordering is settled.
 *
 * The delay (`delay_frames`) is the cost we pay to absorb arrival jitter. A
 * larger delay smooths over more jitter but adds visible latency; the canonical
 * choice is `~3 * snapshot_interval + small slack` (Glenn Fiedler).
 *
 * Generic over payload type — the buffer treats payloads as opaque blobs to
 * pass through. Common payload types: `Uint8Array` (raw packet), `BinaryBuffer`,
 * deserialized action records.
 *
 * @author Alex Goldring
 * @copyright Company Named Limited (c) 2025
 */
export class JitterBuffer {
    /**
     * @param {{ delay_frames?: number }} [options]
     */
    constructor({ delay_frames }?: {
        delay_frames?: number;
    });
    /** @readonly @type {number} */
    readonly delay_frames: number;
    /**
     * Insert a payload tagged with its source frame number. Inserts in
     * frame-sorted order so {@link drain_until} can scan from the front.
     *
     * @param {number} frame
     * @param {*} payload
     */
    push(frame: number, payload: any): void;
    /**
     * Release every payload whose frame is `<= current_frame - delay_frames`.
     * Callback receives `(frame, payload)` in frame-ascending order.
     *
     * @param {number} current_frame
     * @param {function(number, *): void} callback
     * @returns {number} number of payloads released
     */
    drain_until(current_frame: number, callback: (arg0: number, arg1: any) => void): number;
    /**
     * Discard everything in the buffer (e.g. on disconnect).
     */
    clear(): void;
    /**
     * Number of payloads currently held.
     * @returns {number}
     */
    size(): number;
    /**
     * Frame of the oldest payload, or `-1` if empty.
     * @returns {number}
     */
    earliest_frame(): number;
    #private;
}
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