Module `Direct_stream_writer.Expert`

val write : 'a t -> buf:Core_kernel.Bigstring.t -> pos:int -> len:int -> [ `Flushed of unit Async_kernel.Deferred.t | `Closed ]
val write_without_pushback : 'a t -> buf:Core_kernel.Bigstring.t -> pos:int -> len:int -> [ `Ok | `Closed ]