export type BlendshapeCategory = {
    categoryName: string;
    score: number;
};
export type Emotion = string;
export interface EmotionResult {
    emotion: Emotion;
    labelHints: string[];
}
/**
 * Classify emotion from blendshapes and baseline.
 * @param blendshapes Category[] from FaceLandmarker
 * @param baseline Record of baseline scores
 * @param history Array of recent emotion results for smoothing
 */
export declare function classifyBlendshapes(blendshapes: BlendshapeCategory[], baseline: Record<string, number>, history?: string[]): EmotionResult;