val string_of_op : op -> string
module type PROTOCOL_IMPLEMENTATION = sig ... end
module Proto_32 : PROTOCOL_IMPLEMENTATION
module Proto_64 : PROTOCOL_IMPLEMENTATION
Blkproto.Req
val string_of_op : op -> string
module type PROTOCOL_IMPLEMENTATION = sig ... end
module Proto_32 : PROTOCOL_IMPLEMENTATION
module Proto_64 : PROTOCOL_IMPLEMENTATION