three.js/examples/jsm/loaders/HDRCubeTextureLoader.d.ts

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

import { RGBELoader } from './RGBELoader';

export class HDRCubeTextureLoader extends Loader {
  constructor(manager?: LoadingManager);
  hdrLoader: RGBELoader;
  type: TextureDataType;

  load(urls: string[], onLoad: (texture: CubeTexture) => void, onProgress?: (event: ProgressEvent) => void, onError?: (event: ErrorEvent) => void): void;
  setDataType(type: TextureDataType): this;
}