> **Experimental**
>
> `@aws-cdk/aws-redshift-alpha` is an [**experimental**](/stability) (alpha) package: its API may change in any release, without a major version bump.
# ClusterParameterGroupProps

Properties for a parameter group.

Extends: ClusterParameterGroupProps
Used as props by: ClusterParameterGroup

- Stability: [Experimental](/cdk/api/stability.html)
- Source: [`lib/parameter-group.ts`](https://github.com/aws/aws-cdk/blob/v2.275.0-alpha.0/packages/@aws-cdk/aws-redshift-alpha/lib/parameter-group.ts#L34)

## Example

```ts
import { ClusterParameterGroup } from '@aws-cdk/aws-redshift-alpha';

const params = new ClusterParameterGroup(this, 'Params', {
  description: 'desc',
  parameters: {
    require_ssl: 'true',
  },
});

params.addParameter('enable_user_activity_logging', 'true');
```

## Properties

- `description`: string — Description for this parameter group.

  **Default:** a CDK generated description

- `parameters`: { [key: string]: string } (required) — The parameters in this parameter group.