How to use Rich Creative as the option (programmatically) via the Graph API

I’m using the Facebook Graph API to create an Instant Form via:
https://graph.facebook.com/v17.0//leadgen_forms
I know "is_optimized_for_quality": true key toggles between "More Volume" and "Higher Intent," but I can’t find details on enabling Rich Creative through API. 1. Does Rich Creative have a separate key? If so, what is it? 2. If it uses the same key, how is it managed since it’s boolean?
I need to set Rich Creative as the option (programmatically) via the Graph API. Guidance would be appreciated.