# ActivityReference

A reference to a Activity resource.

- Source: Generated code
- Type last changed: v2.224.0 · 13 Nov 2025

## Example

```ts
// The code below shows an example of how to instantiate this type.
// The values are placeholders you should change.
import { aws_stepfunctions as interfaces_stepfunctions } from 'aws-cdk-lib/interfaces';
const activityReference: interfaces_stepfunctions.ActivityReference = {
  activityArn: 'activityArn',
};
```

## Properties

- `activityArn`: string (required) — The Arn of the Activity resource.