import { Landmark } from '../model/types.js';
export declare function computeEAR(landmarks: readonly Landmark[], idx: readonly number[]): number;
export declare const LEFT_EYE_INDICES: readonly [33, 160, 158, 133, 153, 144];
export declare const RIGHT_EYE_INDICES: readonly [362, 385, 387, 263, 373, 380];
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