You can search for identifiers within the package.
in-package search v0.2.0
val do_json_rpc : url:string -> Rpc.call -> Rpc.response Lwt.t
val do_json_rpc_opt : url:string -> Rpc.call -> Rpc.response Lwt.t
val do_xml_rpc : url:string -> Rpc.call -> Rpc.response Lwt.t