three.js/examples/jsm/loaders/3MFLoader.d.ts

import {
	Loader,
	LoadingManager,
	Group
} from '../../../src/Three';

export class ThreeMFLoader extends Loader {

	constructor( manager?: LoadingManager );
	availableExtensions: object[];

	load( url: string, onLoad: ( object: Group ) => void, onProgress?: ( event: ProgressEvent ) => void, onError?: ( event: ErrorEvent ) => void ): void;
	loadAsync( url: string, onProgress?: ( event: ProgressEvent ) => void ): Promise<Group>;
	parse( data: ArrayBuffer ): Group;
	addExtension( extension: object ): void

}