val create_with_cell : ('a, Async_kernel__Types.Cell.any) Async_kernel__Types.Cell.t ‑> 'a Async_kernel__.Types.Ivar.t
val create : unit ‑> 'a Async_kernel__.Types.Ivar.t
val create_full : 'a ‑> 'a Async_kernel__.Types.Ivar.t