import type { PerformanceMonitorOps } from "../types";
export declare class PerformanceMonitor {
    private readonly config;
    private metrics;
    private isStarted;
    isReported: boolean;
    private isStopped;
    private observers;
    private reportTimer;
    private lcpEntries;
    private inpEntries;
    private clsValue;
    private ttiResolve?;
    constructor(options?: PerformanceMonitorOps);
    private detectDeviceType;
    private detectNetworkType;
    private getDeviceMemory;
    private getCPUCores;
    private initPerfTiming;
    private logDebug;
    start(): void;
    private resetForNextRoute;
    report(): void;
    private checkWarnings;
    private renderReport;
    private sendReport;
    dispose(): void;
}