Captivate Prime API v1: CourseInstance type

I was going over the 'GET /courses/{id}' api v1 endpoint as I am trying to retrieve a list of CourseInstances, including CourseInstance name, for a given Course.

In the returned data, instance 'type' is return, however, this property isn't outlined in the data model.

Can I get some explanation on:

1. What is this 'type' property being returned

2. Can you retrieve a list of CourseInstances, including the name property, using the REST api v1?