AUTHCACHE Error processing cookie - Cookie user mismatch

I just asked basically the same question, but through the python sdk. I've read a couple of items in this site that kinda talk around tokens, but nothing that explicitly says this is how you deal with cookies. A coworker who uses php to query the rest api uses CURLOPT_COOKIESESSION set to true, but going through the sdk code I don't see how I pass something in to effect the same outcome. Sorry this doesn't help much.