https://github.com/mozilla/pdf.js/blob/0df1a5661958df0c4ed2f73b0f3266d825c5c280/src/display/api.js#L710-L719
The return type signature `@returns {Promise<{num: number, gen: number}>}` is mismatched with its definition. (should be `@returns {Promise<number>}`)
canvasContext,
    viewport,
    intent = "display",
    renderInteractiveForms = false,
    transform = null,
    imageLayer = null,
    canvasFactory = null,
    background = null,
    includeAnnotationStorage = false,
    optionalContentConfigPromise = null,
  }) {
    if (
      (typeof PDFJSDev === "undefined" || PDFJSDev.test("GENERIC")) &&
      arguments[0]?.annotationStorage !== undefined
    ) {
      deprecated(
        "render no longer accepts an `annotationStorage` option, " +
          "please use the `includeAnnotationStorage`-boolean instead."
      );
      includeAnnotationStorage ||= !!arguments[0].annotationStorage;
    }
    if (this._stats) {