The object widget allows you to group multiple widgets together, nested under a single field. You can choose any widget as a child of an object widget—even other objects.
* **Name:** `object`
* **UI:** a field containing one or more child widgets
* **Data type:** list of child widget values
* **Options:**
* `default`: you can set defaults within each sub-field's configuration
* `collapsed`: if added and labeled `true`, collapse the widget's content by default
* `summary`: specify the label displayed when the object is collapsed
* `fields`: (**required**) a nested list of widget fields to include in your widget
