Instrumentation.Predicate
type t = [
| `backend of Backend.t
| `present of Backend.Name.t Nonempty_list.t
| `absent of Backend.Name.t Nonempty_list.t
]
val equal : t -> t -> bool
include Sexplib0.Sexpable.S with type t := t
val t_of_sexp : Sexplib0__.Sexp.t -> t
val sexp_of_t : t -> Sexplib0__.Sexp.t