import { useSharedValue } from 'react-native-reanimated';
import type { FPSMetrics, FPSMonitorConfig } from '../types';
export interface UseFPSMonitorResult {
    /** SharedValue containing current FPS metrics (for UI thread access) */
    metrics: ReturnType<typeof useSharedValue<FPSMetrics>>;
    /** Start FPS monitoring */
    start: () => void;
    /** Stop FPS monitoring */
    stop: () => void;
    /** Reset all metrics */
    reset: () => void;
    /** Render-safe snapshot (uses React state, may be slightly stale due to throttling) */
    getSnapshot: () => FPSMetrics;
    /** Direct SharedValue read (accurate but NOT render-safe - use for final capture only) */
    getSnapshotImmediate: () => FPSMetrics;
    /** Whether monitoring is currently active */
    isActive: boolean;
}
/**
 * Hook for monitoring FPS on both UI and JS threads
 *
 * Uses:
 * - useFrameCallback for UI thread FPS (Reanimated pattern)
 * - requestAnimationFrame for JS thread FPS
 *
 * @param config - Optional configuration for thresholds and buffer size
 */
export declare function useFPSMonitor(config?: Partial<FPSMonitorConfig>): UseFPSMonitorResult;
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