You can search for identifiers within the package.
in-package search v0.2.0
method fetch : Js_of_ocaml.Js.js_string Js_of_ocaml.Js.t -> fetch_init Js_of_ocaml.Js.t Js_of_ocaml.Js.optdef -> response_js Js_of_ocaml.Js.t promise Js_of_ocaml.Js.meth
method fetch_request : request Js_of_ocaml.Js.t -> response_js Js_of_ocaml.Js.t promise Js_of_ocaml.Js.meth