fix: enhance module exports in index.js to include Api and HttpError

Author: PuruVJ

lib/index.js

@@ -574,6 +574,12 @@ const defaultExport = { create, configure }
 
 // @ts-ignore
 module.exports = defaultExport
+// @ts-ignore
+module.exports.Api = Api
+// @ts-ignore
+module.exports.HttpError = HttpError
+// @ts-ignore
+module.exports.default = defaultExport
 
 export { Api }
 export default defaultExport