Support Returns API to create RMA Request

The background is that I sell my products on multiple marketplaces, and each has different return flows that the aftership Returns page cannot handle. It would be much easier if there is a Returns API that can meet my requirements below.

 

Need: - I need a Returns API to allow creating RMA/return requests without having to use the Returns Page to file it.  - I can call the API and pass the information regarding the Return Reason Resolution, etc in one go.  - Once I call this API, it will return creation in Pending or Auto-Approved Status.