UUIDVar
UUID extractor of a path variable: {{{ Path("/user/13251d88-7a73-4fcf-b935-54dfae9f023e") match { case Root / "user" / UUIDVar(userId) => ... }}}
class PathVar[UUID]
class Object
trait Matchable
class Any
UUID extractor of a path variable: {{{ Path("/user/13251d88-7a73-4fcf-b935-54dfae9f023e") match { case Root / "user" / UUIDVar(userId) => ... }}}