Android
```kotlin
inner class SubspaceMeasurableLayout :
SubspaceMeasurable, SubspaceLayoutCoordinates, SubspaceSemanticsInfo, SubspacePlaceable()
```
A [SubspaceMeasurable](/jetpack-compose/androidx.xr.compose/compose/interfaces/SubspaceMeasurable) and [SubspacePlaceable](/jetpack-compose/androidx.xr.compose/compose/classes/SubspacePlaceable) object that is used to measure and lay out the
children of this node.
See `androidx.compose.ui.node.NodeCoordinator`
## Properties
Android
```kotlin
val tail: SubspaceModifier.Node
```
The tail node of `SubspaceModifierNodeChain`.
This node is used to mark the end of the modifier chain.
Android
```kotlin
val isPlaced
```