You can search for identifiers within the package.
in-package search v0.2.0
type t
val empty : t
val is_empty : t -> bool
val add_warning : t -> string -> int -> int -> string -> t
val add_error : t -> string -> int -> int -> string -> t
val contains_error : t -> bool
val print_all : t -> unit
val print_warnings : t -> unit
val print_errors : t -> unit
val concat : t list -> t
val append : t -> t -> t