old_contents: import Planner from './components/planner';
  import Catalog from './catalog/catalog';
  import ToolbarButton from './components/toolbar/toolbar-button';
  import Ruler from './components/viewer2d/ruler';
  
  console.info(`react-planner started`); //MIT LICENSE COMPLIANT
  
  
  export {
    Planner, Catalog, ToolbarButton, Ruler
  };
  
new_contents: import Planner from './components/planner';
  import Catalog from './catalog/catalog';
  import ToolbarButton from './components/toolbar/toolbar-button';
  import Ruler from './components/viewer2d/ruler';
  import * as Models from './models'
  
  console.info(`react-planner started`); //MIT LICENSE COMPLIANT
  
  
  export {
    Planner, Catalog, ToolbarButton, Ruler, Models
  };
  
subject: add Models to public elements