Android
```kotlin public var AndroidComposeTestRule<*, *>.session: Session? ``` The XR [Session](/jetpack-compose/androidx.xr.compose/compose-testing/properties/session) for the current `AndroidComposeTestRule`. This will be null until the value is set or `LocalSession.current` is accessed in compose, after which the value will be non-null and return the current [Session](/jetpack-compose/androidx.xr.compose/compose-testing/properties/session). Setting this value after calling `setContent` will not change the Session that is used for that content block. Setting the value to null will indicate that the default test Session should be used.