Module Async_kernel__.Job_or_event_intf

Job_or_event is a custom zero-alloc sum type that is like:

      | Event of Event.t
      | Job   of Job.t

except that it uses the fact that Event.t is a pointer and Job.t is an int to be zero alloc.

module Event = Async_kernel__.Types.Event
module type Job_or_event : sig ... end