Android
```kotlin
public interface SubspaceModifier
```
An ordered, immutable collection of [subspace modifier elements](/jetpack-compose/androidx.xr.compose/compose/classes/SubspaceModifierNodeElement)
that decorate or add behavior to Subspace Compose elements.
Based on [androidx.compose.ui.Modifier](/jetpack-compose/androidx.compose.ui/ui/interfaces/Modifier)
## Functions
foldIn
```kotlin
public fun foldIn(: R, operation: (R, SubspaceModifierNodeElement) -> R): R
```
Accumulates a value starting with `initial` and applying `operation` to the current value and
each [SubspaceModifierNodeElement](/jetpack-compose/androidx.xr.compose/compose/classes/SubspaceModifierNodeElement) from outside in.
foldOut
```kotlin
public fun foldOut(: R, operation: (SubspaceModifierNodeElement, R) -> R): R
```
Accumulates a value starting with `initial` and applying `operation` to the current value and
each [SubspaceModifierNodeElement](/jetpack-compose/androidx.xr.compose/compose/classes/SubspaceModifierNodeElement) from inside out.
any
```kotlin
public fun any(predicate: (SubspaceModifierNodeElement) -> Boolean): Boolean
```
Returns `true` if `predicate` returns true for any [SubspaceModifierNodeElement](/jetpack-compose/androidx.xr.compose/compose/classes/SubspaceModifierNodeElement) in this
[SubspaceModifier](/jetpack-compose/androidx.xr.compose/compose/interfaces/SubspaceModifier).
all
```kotlin
public fun all(predicate: (SubspaceModifierNodeElement) -> Boolean): Boolean
```
Returns `true` if `predicate` returns true for all [SubspaceModifierNodeElement](/jetpack-compose/androidx.xr.compose/compose/classes/SubspaceModifierNodeElement)s in this
[SubspaceModifier](/jetpack-compose/androidx.xr.compose/compose/interfaces/SubspaceModifier) or if this [SubspaceModifier](/jetpack-compose/androidx.xr.compose/compose/interfaces/SubspaceModifier) contains no Elements.
then
```kotlin
public infix fun then(other: SubspaceModifier): SubspaceModifier
```
Concatenates this modifier with another.
Returns a [SubspaceModifier](/jetpack-compose/androidx.xr.compose/compose/interfaces/SubspaceModifier) representing this modifier followed by `other` in sequence.