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

Filter events using an event pattern.

- Stability: [Experimental](/cdk/api/stability.html)
- Source: [`lib/filter.ts`](https://github.com/aws/aws-cdk/blob/v2.275.0-alpha.0/packages/@aws-cdk/aws-pipes-alpha/lib/filter.ts#L6)

## Properties

- `pattern`: string — Stringified version of the filter pattern.