import { VTKLoader } from "three/examples/jsm/loaders/VTKLoader.js";
import * as THREE from "three";
import { IOptVTKLoader } from "../types/types";
export declare function copperVtkLoader(url: string, scene: THREE.Scene, content: THREE.Group, opts?: IOptVTKLoader): void;
export declare function copperMultipleVtk(opts?: IOptVTKLoader): {
    vtkLoader: VTKLoader;
    vtkmaterial: THREE.MeshStandardMaterial;
};