How get request and response log from postman calls?

Question

I want to get the sequence of all requests and responses from manual testing flow in postman. How can I achieve this? I cannot see how this can be done in postman without exporting each request and reponse pair manually from a postman proxy session. I am able to save a postman proxy session as a collection but that does not save the responses. Any format would do but I would prefer JSON (HAR or something like that).