text: import extensions from './extensions';
  import loading from './loading';
  import preferences from './preferences';
  import servers from './servers';
  import studies from './studies';
  import timepointManager from './timepointManager';
  import viewports from './viewports';
  
  const reducers = {
      extensions,
      loading,
      preferences,
      servers,
      studies,
      timepointManager,
      viewports
  };
  
  export default reducers;
  