Can you see HTTPS in curl response?

I may be lacking in HTTP and HTTPS knowledge so apologies in advance.

I see that in the response to a curl request, using curl -i, we can see the HTTP version and response code, for e.g. HTTP/2 200. This is returned when the curl request is directed at a HTTPS endpoint (https://xxx).

Would it be possible to see a HTTPS in the response? If not, why not?