HTTP cookie API (proto)
type.http.v3.Cookie
Cookie defines an API for obtaining or generating HTTP cookie.
{
  "name": ...,
  "ttl": {...},
  "path": ...
}
- name
- (string, REQUIRED) The name that will be used to obtain cookie value from downstream HTTP request or generate new cookie for downstream. 
- ttl
- (Duration) Duration of cookie. This will be used to set the expiry time of a new cookie when it is generated. Set this to 0 to use a session cookie. 
- path
- (string) Path of cookie. This will be used to set the path of a new cookie when it is generated. If no path is specified here, no path will be set for the cookie.