# Sandbox.Animation.GraphBuilder.IsExternalGraphSlotFilled

```csharp
Node IsExternalGraphSlotFilled(Node externalGraphSlot)
```

True while the given [Sandbox.Animation.GraphBuilder.ExternalGraphSlot](/api/Sandbox.Animation.GraphBuilder/ExternalGraphSlot) has a child graph connected.

### Parameters

- `externalGraphSlot` (`Node`)

### Returns

`Node`

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