You can search for identifiers within the package.
in-package search v0.2.0
type 'a t = 'a
val return : 'a -> 'a t
val bind : 'a t -> ('a -> 'b t) -> 'b t
val map : 'a t -> ('a -> 'b) -> 'b t
val select : Value.vbool -> bool t
val select_i32 : Value.int32 -> Int32.t t
val trap : Trap.t -> 'a t
val let* : 'a t -> ('a -> 'b t) -> 'b t
val let+ : 'a t -> ('a -> 'b) -> 'b t