You can search for identifiers within the package.
in-package search v0.2.0
val add_alias : string -> string -> unit
val is_available : (bool -> unit) -> unit
val app_available : string -> (bool -> bool -> unit) -> unit
type email = private Ojs.t
val create_email : ?app:string -> ?to_:string array -> ?cc:string array -> ?bcc:string array -> ?attachments:string array -> ?subject:string -> ?body:string -> ?is_html:bool -> unit -> email
val write : email -> (string -> unit) -> unit