# Sandbox.Animation.GraphBuilder.ConstantId

```csharp
Node ConstantId(string value)
```

Add a constant ID (tag) value, matched by name against events, selectors and comparisons.

### Parameters

- `value` (`string`)

### Returns

`Node`

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