open fun tag(type: Class<*>, tag: Any?): Topen fun tag(type: KClass<*>, tag: Any?): T
Attaches tag to the request using type as a key. Tags can be read from a
request using Taggable.tag. Use null to remove any existing tag assigned for
type.
Use this API to attach originating elements, debugging, or other application data to a spec so that you may read it in other APIs or callbacks.