Set_diff.Changeinclude Ppx_quickcheck_runtime.Quickcheckable.S1 with type 'a t := 'a tval quickcheck_generator :
'a Base_quickcheck.Generator.t ->
'a t Base_quickcheck.Generator.tval quickcheck_observer :
'a Base_quickcheck.Observer.t ->
'a t Base_quickcheck.Observer.tval quickcheck_shrinker :
'a Base_quickcheck.Shrinker.t ->
'a t Base_quickcheck.Shrinker.t