# Sandbox.Animation.GraphBuilder.CurrentSyncEventId

```csharp
Node CurrentSyncEventId(State sourceState)
```

The ID of the source state's current sync event. Only meaningful as a
state-machine transition condition.

### Parameters

- `sourceState` (`State`)

### Returns

`Node`

Declared in [Sandbox.Animation.GraphBuilder](/api/Sandbox.Animation.GraphBuilder).
Assembly: `Sandbox.Engine`.