node_modules/three/src/loaders/BufferGeometryLoader.d.ts

import { LoadingManager } from './LoadingManager';
import { BufferGeometry } from './../core/BufferGeometry';

export class BufferGeometryLoader {
  constructor(manager?: LoadingManager);

  manager: LoadingManager;

  load(
    url: string,
    onLoad: (bufferGeometry: BufferGeometry) => void,
    onProgress?: (event: any) => void,
    onError?: (event: any) => void
  ): void;
  parse(json: any): BufferGeometry;
}