Multiple Cookies in response for Cookie Auth

I'm working on porting an API that sets 4 cookies in it's response to a login request. Is there a recommended way to do this? I can't use Set-Cookie more than once in the headers without hitting yaml issues. I found a work-around that basically sticks a null character in front of Set-Cookie because that allows Swagger to show 4 cookies but we have open source software call connexion that flags that as invalid. I'm trying to figure out what the right approach to this would be.