You can search for identifiers within the package.
in-package search v0.2.0
type t
include Sexplib0.Sexpable.S with type t := t
val t_of_sexp : Sexplib0__.Sexp.t -> t
val sexp_of_t : t -> Sexplib0__.Sexp.t
val of_rev_list : (string * string) list -> t
val of_list : (string * string) list -> t
val iter : t -> f:(key:string -> data:string -> unit) -> unit
val mem : t -> string -> bool
val find : t -> string -> string option
val find_multi : t -> string -> string list
val empty : t
val add_unless_exists : t -> key:string -> data:string -> t