Add existing to tracked

node_modules/@cesium/engine/Source/DataSources/createRawPropertyDescriptor.js

@@ -0,0 +1,13 @@
+import createPropertyDescriptor from "./createPropertyDescriptor.js";
+
+function createRawProperty(value) {
+  return value;
+}
+
+/**
+ * @private
+ */
+function createRawPropertyDescriptor(name, configurable) {
+  return createPropertyDescriptor(name, configurable, createRawProperty);
+}
+export default createRawPropertyDescriptor;