import type { ViteHotContext } from 'vite/types/hot.js';
import type { Emitter } from './emitter.js';
/**
 * The events manager is a pass-through from the Emitter to Vite's HMR context.
 */
export declare class EventManager {
    #private;
    constructor(emitter: Emitter, ctx?: ViteHotContext);
    /**
     * Boot the event manager.
     *
     * Forwards all emitter events — both built-in framework events and any custom events
     * emitted by browser-side plugins — to Node via the Vite HMR WebSocket channel.
     * Known events with errors are serialized before sending.
     */
    boot(): void;
}