Module Async_unix__Raw_fd.State
type t=|Close_requested of Async_unix__.Import.Execution_context.t * unit -> unit|Closed|Open of unit Async_unix__.Import.Ivar.t
val sexp_of_t : t -> Ppx_sexp_conv_lib.Sexp.tval transition_is_allowed : t -> t -> boolval is_open : t -> bool