import { MediapipeFacemeshDeformSopNode } from '../MediapipeFacemeshDeform';
import { CopType } from '@polygonjs/polygonjs/dist/src/engine/poly/registers/nodes/types/Cop';
export declare const ALLOWED_COP_TYPES: CopType[];
export declare class MediapipeFacemeshSourceController {
    private node;
    constructor(node: MediapipeFacemeshDeformSopNode);
    private _activeHTMLVideoElement;
    activeHTMLVideoElement(): HTMLVideoElement | undefined;
    initActiveHTMLVideoElement(): Promise<HTMLVideoElement | undefined>;
    private _getHTMLVideoElement;
}