| ContainerProperty | The property name in the parent that will contain this object |
| Data | The data for the new object |
| Id | The identifier for the new object |
| IsContainerArray | Whether this object is being added to an array (true) or as a direct property (false) |
| Parent | The parent object that will contain this object |
| PreviousElement | The previous sibling when adding to an array (null if first or not in array) |