Convert src/shared/boolean_attributes.ts to JavaScript

src/shared/boolean_attributes.ts

@@ -24,12 +24,14 @@ const _boolean_attributes = [
     'required',
     'reversed',
     'selected'
-] as const;
-
-export type BooleanAttributes = (typeof _boolean_attributes)[number];
-
+];
 /**
  * List of HTML boolean attributes (e.g. `<input disabled>`).
  * Source: https://html.spec.whatwg.org/multipage/indices.html
+ * @type {Set<string>}
  */
-export const boolean_attributes: Set<string> = new Set([..._boolean_attributes]);
+export const boolean_attributes = new Set([..._boolean_attributes]);
+
+
+/** @typedef {Class<_boolean_attributes>} BooleanAttributes */
+