export interface FrameSample {
    timestamp: number;
    durationMs: number;
    fps: number;
    isJank: boolean;
    isFrozen: boolean;
}
export interface JankEvent {
    id: string;
    timestamp: number;
    timeStr: string;
    durationMs: number;
    fps: number;
    severity: 'moderate' | 'severe' | 'frozen';
}
export interface MemoryStats {
    usedHeapMb: number;
    totalAllocMb: number;
    peakHeapMb: number;
    engine: string;
    isAvailable: boolean;
    gcCount?: number;
    gcTimeMs?: number;
}
export interface PercentileStats {
    p50Ms: number;
    p90Ms: number;
    p95Ms: number;
    p99Ms: number;
}
export interface BucketDistribution {
    ultraSmoothCount: number;
    smoothCount: number;
    degradedCount: number;
    stutteredCount: number;
    frozenCount: number;
    totalSamples: number;
}
export interface EngineDetails {
    engineName: string;
    isHermes: boolean;
    isFabric: boolean;
    isTurboModules: boolean;
    architectureName: string;
    gcCollections?: number;
    gcCpuTimeMs?: number;
    heapUsedMb: number;
    heapTotalMb: number;
    peakHeapMb: number;
}
export interface LivePerformanceData {
    fps: number;
    avgFps: number;
    minFps: number;
    maxFps: number;
    frameDurationMs: number;
    refreshRateHz: number;
    jankCount: number;
    frozenCount: number;
    jankPercent: number;
    apdexScore: number;
    apdexStatus: 'EXCELLENT' | 'GOOD' | 'FAIR' | 'POOR';
    satisfiedCount: number;
    toleratingCount: number;
    frustratedCount: number;
    longTaskCount: number;
    percentiles: PercentileStats;
    budgetUsedPercent: number;
    budgetHeadroomMs: number;
    distribution: BucketDistribution;
    engineDetails: EngineDetails;
    jsEventLoopLagMs: number;
    avgJsLagMs: number;
    peakJsLagMs: number;
    healthScore: number;
    healthStatus: 'EXCELLENT' | 'GOOD' | 'FAIR' | 'POOR';
    frameHistory: number[];
    jsLagHistory: number[];
    recentJanks: JankEvent[];
    memory: MemoryStats;
    sessionDurationSec: number;
    isStressTesting: boolean;
    runJsStressTest: (durationMs?: number) => void;
    runRenderStressTest: () => void;
    triggerGC: () => void;
    resetStats: () => void;
}
export declare const usePerformanceMonitor: (active?: boolean) => LivePerformanceData;