import type { EventEmitter } from '../../../types/index.js';
import type { Rpc } from '@lynx-js/web-worker-rpc';
export type TimingSystem = {
    registerGlobalEmitter: (globalEventEmitter: EventEmitter) => void;
    markTimingInternal: (timingKey: string, pipelineId?: string) => void;
    pipelineIdToTimingFlags: Map<string, string[]>;
};
export declare function createTimingSystem(mainThreadRpc: Rpc, uiThreadRpc: Rpc): TimingSystem;