O1trace.Thread
type t
val name : t -> string
val load_state : t -> 'a Core_kernel.Type_equal.Id.t -> 'a option
val set_state : t -> 'a Core_kernel.Type_equal.Id.t -> 'a -> unit
val iter_threads : f:( t -> unit ) -> unit
val dump_thread_graph : unit -> bytes
module Fiber : sig ... end