You can search for identifiers within the package.
in-package search v0.2.0
ez_api.ws_types
EzWsCommon.S
type 'a rp = ('a, string) result Lwt.t
type 'a action = {
send : 'a -> unit rp;
close : int option -> unit rp;
}
type 'a ws = {
action : 'a action;
conn : unit rp;