Fix for CollectionElements

types/cytoscape/cytoscape-tests.ts

@@ -80,3 +80,17 @@ cy.on('zoom', (event) => {
     cy.nodes('$node > node').style('opacity', 0);
   }
 });
+
+cy.animate({
+  fit: {
+    padding: 10,
+    eles: cy.nodes()
+  },
+  duration: 500
+});
+
+const node = cy.nodes()[0];
+cy.animate({
+  center: {eles: node},
+  duration: 500
+});

types/cytoscape/index.d.ts

@@ -1127,8 +1127,7 @@ declare namespace cytoscape {
     /**
      * The output is a collection of node and edge elements OR single element.
      */
-    interface CollectionElements extends
-        EdgeCollection, NodeCollection, SingularElement { }
+    type CollectionElements = EdgeCollection | NodeCollection | SingularElement;
 
     /**
      * edges -> Cy.EdgeCollection