code: function Diagram() {
          ExtensibleModel.apply(this, arguments);
  
          /** @member {boolean} */
          this.visible = true;
  
          /** @member {boolean} */
          this.defaultDiagram = false;
  
          /** @member {Array.<View>} */
          this.ownedViews = [];
  
          /** @member {Array.<View>} */
          this.selectedViews = [];
      }
docs: Diagram
  
  @constructor
  @extends ExtensibleModel