code: function _instantiate( Widget, group ) {
      let opts = {};
  
      if ( !Widget.name ) {
          return console.error( 'widget doesn\'t have a name' );
      }
  
      if ( Widget.helpersRequired && Widget.helpersRequired.length > 0 ) {
          opts.helpers = {};
          Widget.helpersRequired.forEach( helper => {
              opts.helpers[ helper ] = options[ helper ];
          } );
      }
  
      const elements = _getElements( group, Widget.selector );
  
      if ( !elements.length ) {
          return;
      }
  
      new Collection( elements ).instantiate( Widget, opts );
  
      _setLangChangeListener( Widget, elements );
      _setOptionChangeListener( Widget, elements );
      _setValChangeListener( Widget, elements );
  }
docs: Instantiate a widget on a group (whole form or newly cloned repeat)
  
  @param  widget The widget to instantiate
  @param  {Element} group The element inside which widgets need to be created.