Functor Timing_wheel_unit_tests.Make

module Make: 
functor (Timing_wheel : Timing_wheel_intf.Timing_wheel) -> sig .. end
Parameters:
Timing_wheel : Timing_wheel_intf.Timing_wheel

val create_unit : ?level_bits:Timing_wheel.Level_bits.t ->
?start:Timing_wheel.Time.t ->
?alarm_precision:Timing_wheel.Time.Span.t -> unit -> unit Timing_wheel.t
create_unit is exposed for use in additional unit tests.