type struct_t = [
| `Log_a2af2945d72d0ea5
]
val log_get : t -> string
val log_set : t -> string -> unit
val next_get : t -> int64
val next_get_int_exn : t -> int
val next_set : t -> int64 -> unit
val next_set_int : t -> int -> unit
val init_root : ?message_size:int -> unit -> t