export declare const latencyTimestampTracker: { reset: () => number; update: () => number; get: (delta?: boolean) => number; }; export declare const interruptTimestampTracker: { reset: () => number; update: () => number; get: (delta?: boolean) => number; }; export declare const streamReadyTimestampTracker: { reset: () => number; update: () => number; get: (delta?: boolean) => number; };