You may find instructions as to how to import the postman collection here. There are two environments to import, one for lightsail and one for localhost.
The two endpoints that are also exposed in lightsail are api/v1/highlight and api/v1/finetune..
The two endpoints: http://localhost:5000/predict and http://localhost:5000/finetune are the endpoints of the BaseLearner component (python & JAVA) . These are not exposed on lightsail.