import type { EyeStatusResult, UseBlinkDetectionResult } from '../types';
/**
 * Options for useBlinkDetection hook
 */
export interface UseBlinkDetectionOptions {
    /** Whether eye tracking is enabled. Default: true */
    enabled?: boolean;
    /** Threshold below which an eye is considered closed (0-1). Default: 0.5 */
    eyeClosedThreshold?: number;
    /** Callback when eye status changes */
    onEyeStatusChange?: (status: EyeStatusResult) => void;
}
/**
 * Hook for tracking eye status from detected faces
 *
 * This hook provides real-time eye open/closed status based on face detection results.
 * The user can set their own threshold for determining when an eye is considered closed.
 *
 * @param options - Eye tracking options
 * @returns Eye status and controls
 *
 * @example
 * ```tsx
 * function EyeTracker() {
 *   const { eyeStatus, processEyeStatus } = useBlinkDetection({
 *     eyeClosedThreshold: 0.3, // Consider eye closed when probability < 0.3
 *     onEyeStatusChange: (status) => {
 *       // Handle blink detection yourself based on status
 *       if (status.leftEye.isClosed && status.rightEye.isClosed) {
 *         console.log('Both eyes closed!');
 *       }
 *     },
 *   });
 *
 *   // In your face detection callback:
 *   const handleFaces = (faces: Face[]) => {
 *     processEyeStatus(faces);
 *   };
 *
 *   return (
 *     <View>
 *       <Text>Left Eye: {eyeStatus?.leftEye.openProbability.toFixed(2)}</Text>
 *       <Text>Right Eye: {eyeStatus?.rightEye.openProbability.toFixed(2)}</Text>
 *     </View>
 *   );
 * }
 * ```
 */
export declare function useBlinkDetection(options?: UseBlinkDetectionOptions): UseBlinkDetectionResult;
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