module Blit:sig..end
Blit copies between iobufs and advances neither src nor dst.type'rwt_no_seek =('rw, no_seek) Iobuf.t
include Blit.S_permissions
val sub : ([> Core_kernel.Std.read ], no_seek) Iobuf.t ->
pos:int -> len:int -> ('a, 'b) Iobuf.tsub and subo to allow return type to have seek as needed.val subo : ?pos:int ->
?len:int -> ([> Core_kernel.Std.read ], no_seek) Iobuf.t -> ('a, 'b) Iobuf.t