Module MessageWrapper.StructStorage
type (!'cap, !+'a) t = private ('cap, 'a) Capnp_rpc_lwt.StructStorage.t = {- data : 'cap Slice.t;
- pointers : 'cap Slice.t;
}val readonly : ('cap, 'a) t -> (Capnp__MessageSig.ro, 'a) tval with_attachments : 
  Capnp__MessageSig.attachments ->
  ('cap, 'a) t ->
  ('cap, 'a) tval get_attachments : ('cap, 'a) t -> Capnp__MessageSig.attachmentsval cast : ('cap, 'a) t -> ('cap, 'b) ttype !'a reader_t = (Capnp__MessageSig.ro, 'a) t optiontype !'a builder_t = (Capnp__MessageSig.rw, 'a) t