Collectors representing the form fields for this step.
OptionalinputFull server input payload for this node.
OptionalunsupportedForm fields the native SDK skipped because their type was not registered.
Populated on both iOS and Android when the native SDK drops one or more fields (see UnsupportedDaVinciField). Omitted when every server field has a matching collector.
Node requiring user input — contains a list of collectors.