sig
type t = Async_core.Job.t
val invariant : t Core_kernel.Invariant_intf.inv
val create : Async_core.Execution_context.t -> ('a -> unit) -> 'a -> t
val do_nothing : t
val execution_context : t -> Async_core.Execution_context.t
val run : t -> unit
val sexp_of_t : t -> Sexplib.Sexp.t
end