Is it possible to make Animated.timing on an Animated.ValueXY() value ?

Hello, I try to animate an Animated.ValueXY() value like this

```
Animated.timing(
  this.state.pan.y,
  { toValue: 100, duration: 250 }
)
```
or
```
Animated.timing(
  this.state.pan,
  { toValue: { y: 100 }, duration: 250 }
)
```

But it doesn't work. What did I miss ?