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plugins/babylon-with-encantar.js

 
 /**
  * Base class for Augmented Reality experiences
+ * @abstract
  */
 class ARDemo
 {
     }
 
     /**
-     * Animation step
+     * Animation step - called every frame
      * @returns {void}
      */
     update()

plugins/three-with-encantar.js

 
 /**
  * Base class for Augmented Reality experiences
+ * @abstract
  */
 class ARDemo
 {
     }
 
     /**
-     * Animation step
+     * Animation step - called every frame
      * @returns {void}
      */
     update()