[API reference](https://evolu.dev/docs/api-reference) › [@evolu/common](https://evolu.dev/docs/api-reference/common) › [Task](https://evolu.dev/docs/api-reference/common/Task) › RunEventData

```ts
type RunEventData =
  RunEventDataChildAdded | RunEventDataChildRemoved | RunEventDataStateChanged;
```

Defined in: [packages/common/src/Task.ts:1908](https://github.com/evoluhq/evolu/blob/dd96d79f1dbe9a49fa12ce8e0aa7d3d0177795ca/packages/common/src/Task.ts#L1908)

Event-specific payload of a [RunEvent](https://evolu.dev/docs/api-reference/common/Task/interfaces/RunEvent).