`sig
type t
val create : string -> Monitor_sig.Monitor.Point.t
val kill : Monitor_sig.Monitor.Point.t -> unit
val observe : Monitor_sig.Monitor.Point.t -> unit
val observe_calls : string -> ('a -> 'b -> 'c) -> 'a -> 'b -> 'c
val observe_calls2 : string -> ('a -> 'b -> 'c) -> 'a -> 'b -> 'c
val observe_calls_rec : string -> (('a -> 'b) -> 'a -> 'b) -> 'a -> 'b
val observe_calls_rec2 :
string -> (('a -> 'b -> 'c) -> 'a -> 'b -> 'c) -> 'a -> 'b -> 'c
end`