docs: function convertExternalDependencyDefinition( def ) {
    if ( typeof def === 'string' ) {
      const defAsString = {};
      defAsString[ def ] = "";
      return defAsString
    }
    if ( Array.isArray( def ) ) {
      const defAsArray = {};
      def.forEach( function ( file ) {
        defAsString[ file ] = "";
      } );
    }
    return def;
  }