You can search for identifiers within the package.
in-package search v0.2.0
type button
Abstract button type. See button_is_pressed.
button_is_pressed
val button_is_pressed : button -> bool
Is a button pressed?
class type t = object ... end
A gamepad
val get : unit -> t Js.t Js.js_array Js.t
Get all the gamepads available.