message: Add type to register argument
diff: @@ -12,7 +12,7 @@ export type ExpressPlaygroundMiddleware = (
  next: () => void,
  ) => void
  -export type Register = (options) => ExpressPlaygroundMiddleware
  +export type Register = (options: any) => ExpressPlaygroundMiddleware
  const express: Register = function voyagerExpress(options) {
  const middlewareOptions: MiddlewareOptions = {
  