---
source: crates/rolldown_testing/src/integration_test.rs
---
# Assets
## main.d.ts
```ts
export declare class A {
foo: number;
}
```
## main.js
```js
//#region main.ts
var A = class {
foo = 1;
/** @internal */
bar = 2;
};
//#endregion
export { A };
```