import type { RawRecords } from './types';
export declare class Performance {
    #private;
    /**
     * mark a performance point
     */
    mark(name: string): PerformanceMark;
    /**
     * measure the time between two marks
     */
    measure(name: string, start: string, end: string): number;
    /**
     * execute a function and measure the time
     */
    evaluate(name: string, fn: () => Promise<void>): Promise<number>;
    /**
     * Collect frame data
     */
    frame(): void;
    /**
     * Stop collecting frame data
     */
    frameStop(): void;
    /**
     * Clear frame data
     */
    frameReset(): void;
    /**
     * Reset all performance data
     */
    reset(): void;
    /**
     * Export performance results
     */
    export(reset?: boolean): RawRecords;
}