backend/libs/three/loaders/FileLoader.d.ts

import { Loader } from './Loader';
import { LoadingManager } from './LoadingManager';

export class FileLoader extends Loader {
	constructor(manager?: LoadingManager);

	mimeType: undefined | MimeType;
	responseType: undefined | string;

	load(
		url: string,
		onLoad?: (response: string | ArrayBuffer) => void,
		onProgress?: (request: ProgressEvent) => void,
		onError?: (event: ErrorEvent) => void
	): any;
	loadAsync(url: string, onProgress?: (event: ProgressEvent) => void): Promise<string | ArrayBuffer>;
	setMimeType(mimeType: MimeType): FileLoader;
	setResponseType(responseType: string): FileLoader;
}