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

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

export class TTFLoader extends Loader {
  constructor(manager?: LoadingManager);
  reversed: boolean;

  load(url: string, onLoad: (json: object) => void, onProgress?: (event: ProgressEvent) => void, onError?: (event: ErrorEvent) => void): void;
  parse(arraybuffer: ArrayBuffer): object;
}