You can search for identifiers within the package.
in-package search v0.2.0
val string : 'a -> [> `String of 'a ]
val bool : 'a -> [> `Bool of 'a ]
val int : 'a -> [> `Int of 'a ]
val int64 : int64 -> [> `String of string ]
val float : 'a -> [> `Float of 'a ]
val unit : unit -> [> `Null ]
val list : ('a -> 'b) -> 'a list -> [> `List of 'b list ]
val array : ('a -> 'b) -> 'a array -> [> `List of 'b list ]
val option : ('a -> [> `Null ] as 'b) -> 'a option -> 'b
val result : ('a -> [> `String of string ] as 'b) -> ('c -> 'b) -> ('a, 'c) result -> [> `List of 'b list ]