type TimeToAppInteractiveTiming = {
    duration: number;
    interactiveStep: boolean;
};
export type TimeToAppInteractiveTimingWithTimestamp = TimeToAppInteractiveTiming & {
    timestamp: number;
};
export declare function retrieveTimings(names: string[]): Map<string, TimeToAppInteractiveTimingWithTimestamp>;
export declare function storeTiming(name: string, timing: TimeToAppInteractiveTiming): void;
export declare function timingTimestamp(name: string): number;
export {};
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