Parameter Suite_left_catch.R
val generator : 'a QCheck2.Gen.t -> 'a t QCheck2.Gen.tval observable : 'a QCheck2.Observable.t -> 'a t QCheck2.Observable.tval pp : 
  (Stdlib.Format.formatter -> 'a -> unit) ->
  Stdlib.Format.formatter ->
  'a t ->
  unitval equal : ('a -> 'a -> bool) -> 'a t -> 'a t -> bool