message: Description for JsonMetadata class corrected
diff: @@ -688,7 +688,7 @@ export class JsonMetadataClass {
  }
  /**
  - * The metadata object. It has controls object properties' runtime information.
  + * The metadata object. It contains object properties' runtime information and allows you to modify it.
  */
  export class JsonMetadata {
  private classes: HashTable<JsonMetadataClass> = {};
  