invalidatePlacement
Android
```kotlin
public fun SubspaceLayoutModifierNode.invalidatePlacement()
```
Requests a relayout of the [SubspaceLayoutModifierNode](/jetpack-compose/androidx.xr.compose/compose/interfaces/SubspaceLayoutModifierNode) composition tree.
This is used to request a relayout in stateful layout modifiers that are impacted by events that
don't trigger a recomposition. *Do not* call this from [SubspaceLayoutModifierNode.measure](/jetpack-compose/androidx.xr.compose/compose/interfaces/SubspaceLayoutModifierNode).