ohif-viewer/platform/core/src/classes/index.js

import CommandsManager from './CommandsManager';
import HotkeysManager from './HotkeysManager';
import ImageSet from './ImageSet';
import MetadataProvider from './MetadataProvider';

export { MetadataProvider, CommandsManager, HotkeysManager, ImageSet };

const classes = {
  MetadataProvider,
  CommandsManager,
  HotkeysManager,
  ImageSet,
};

export default classes;