You can search for identifiers within the package.
in-package search v0.2.0
type !'a t = 'a -> bool
val (==>) : ('a -> bool) -> 'a t -> 'a t
val assume : bool -> unit
val assume_lazy : bool lazy_t -> unit
val raises : e:exn -> f:('a -> 'b) -> x:'a -> bool
val (&&&) : 'a t -> 'a t -> 'a t
val (|||) : 'a t -> 'a t -> 'a t
val (!!!) : 'a t -> 'a t