import { Object3D } from "three";
import type { IUSDExporterExtension } from "../../Extension.js";
import { USDObject, USDZExporterContext } from "../../ThreeUSDZExporter.js";
export declare class PhysicsExtension implements IUSDExporterExtension {
    get extensionName(): string;
    onExportObject?(object: Object3D, model: USDObject, _context: USDZExporterContext): void;
}