export interface BootIdentity {
    id: string | null;
    approxBootTimeMs: number;
}
export declare function readBootId(): string | null;
export declare function approxBootTimeMs(): number;
export declare function currentBootIdentity(): BootIdentity;
export declare function readProcessStartTicks(pid: number): number | null;
export declare function processStartTimeMs(ticks: number | null, bootTimeMs: number, nowMs?: number): number | null;