Keys which will be used to validate and sign cookies. The key ring should implement the KeyRing interface.

The Response or the headers that will be used with the response. When provided, Set-Cookie headers will be set in the headers when cookies are set or deleted in the map.

An alternative way to extract the headers is to pass the cookie map to the mergeHeaders function to merge various sources of the headers to be provided when creating or updating a response.

A flag that indicates if the request and response are being handled over a secure (e.g. HTTPS/TLS) connection. Defaults to false.