From d7c69eef5ae80d870af0d484ec388093c5b56cff Mon Sep 17 00:00:00 2001
From: zepumph <michael.kauzmann@colorado.edu>
Date: Fri, 17 Jul 2020 14:11:02 -0800
Subject: [PATCH] Add EnabledNode PhET-iO API and support for LinkedElementIO
 in API validation, mixin EnabledComponentAPIMixin into SliderAPI,
 https://github.com/phetsims/sun/issues/605

---
 js/PropertyAPI.js | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/js/PropertyAPI.js b/js/PropertyAPI.js
index ce1a87f7..1feb25ee 100644
--- a/js/PropertyAPI.js
+++ b/js/PropertyAPI.js
@@ -6,16 +6,23 @@
  * @author Michael Kauzmann (PhET Interactive Simulations)
  */
 
-import PhetioObjectAPI from '../../../tandem/js/PhetioObjectAPI.js';
+import PhetioObjectAPI from '../../tandem/js/PhetioObjectAPI.js';
+import merge from '../../phet-core/js/merge.js';
+import required from '../../phet-core/js/required.js';
 import axon from './axon.js';
 
 class PropertyAPI extends PhetioObjectAPI {
 
   /**
-   * @param {Object} [options]
+   * @param {Object} config
    */
-  constructor( options ) {
-    super( options );
+  constructor( config ) {
+
+    config = merge( {
+      phetioType: required( config.phetioType )
+    }, config );
+
+    super( config );
   }
 }