import { Landmark } from '../model/types.js';
export interface FaceMeshResults {
    multiFaceLandmarks?: Landmark[][];
    image?: HTMLCanvasElement | HTMLVideoElement | HTMLImageElement;
}
export interface FaceMeshOptions {
    maxNumFaces?: number;
    refineLandmarks?: boolean;
    minDetectionConfidence?: number;
    minTrackingConfidence?: number;
}
export interface FaceMeshConstructor {
    new (config: {
        locateFile: (file: string) => string;
    }): FaceMeshInstance;
}
export interface FaceMeshInstance {
    setOptions(options: FaceMeshOptions): void;
    onResults(handler: (results: FaceMeshResults) => void): void;
    send(input: {
        image: HTMLVideoElement;
    }): Promise<void>;
    close(): Promise<void>;
}
export interface CameraConstructor {
    new (video: HTMLVideoElement, options: {
        onFrame: () => Promise<void> | void;
        width: number;
        height: number;
    }): CameraInstance;
}
export interface CameraInstance {
    start(): Promise<void>;
    stop(): Promise<void>;
}
export type DrawConnectorsFn = (ctx: CanvasRenderingContext2D, landmarks: Landmark[], connections: unknown, options: {
    color?: string;
    lineWidth?: number;
}) => void;
declare global {
    interface Window {
        FaceMesh?: FaceMeshConstructor;
        Camera?: CameraConstructor;
        drawConnectors?: DrawConnectorsFn;
        FACEMESH_TESSELATION?: unknown;
    }
}
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