Typing nested controlled

import { Hono } from "hono"

// reviews controller
export const reviewsController = new Hono()
  .get("/", (c) => c.json({ message: "Hello, world!" }))
  .get("/:reviewId", (c) => {
    const bookId = c.req.param("bookId") // This is not typed. :(
    const reviewId = c.req.param("reviewId")
    return c.json({ bookId, reviewId })
  })

// books controller
export const booksController = new Hono()
  .get("/", (c) => c.json({ message: "Hello, world!" }))
  .get("/:bookId", (c) => c.json({ message: c.req.param("bookId") }))
  .post("/", (c) => c.json({ message: "Hello, world!" }))
  .put("/:bookId", (c) => c.json({ message: c.req.param("bookId") }))
  .delete("/:bookId", (c) => c.json({ message: c.req.param("bookId") }))
  .route("/:bookId/reviews", reviewsController)

// main controller
export const controller = new Hono().route("/api/books", booksController)