You can search for identifiers within the package.
in-package search v0.2.0
type 'a lwt = {
lwt : 'a Lwt.t;
}
type ('a, 'b) t = ('a, 'b) Result.result lwt
val return : 'a -> ('a, 'b) t
val return_err : 'b -> ('a, 'b) t
val checked_bind : ('a, 'b) t -> ('a -> ('c, 'd) t) -> ('b -> ('c, 'd) t) -> ('c, 'd) t
val bind : ('a, 'b) t -> ('a -> ('c, 'b) t) -> ('c, 'b) t
val (>>=) : ('a, 'b) t -> ('a -> ('c, 'b) t) -> ('c, 'b) t
val lwt : 'a lwt -> 'a Lwt.t