sig
type t = java'util'concurrent'TimeUnit java_instance
val nanoseconds : TimeUnit.t
val microseconds : TimeUnit.t
val milliseconds : TimeUnit.t
val seconds : TimeUnit.t
val minutes : TimeUnit.t
val hours : TimeUnit.t
val days : TimeUnit.t
val convert : src:TimeUnit.t -> dst:TimeUnit.t -> java_long -> java_long
end