Does ARCore have a semantic equivalent of ARKit's "guard let planeAnchor"?

Question

I'd like to know if there's similar semantic construction in ARCore/Kotlin like the following guard let statement in ARKit/Swift?

let anchor: ARAnchor?

guard let planeAnchor = anchor as? ARPlaneAnchor else { 
    print("condition not met")
    return 
}

Answer 1

I think I've found a required semantics for ARCore's planeAnchor with Elvis operator and safe cast operator:

public class CenterPosePlaneAnchor { ... }

val anchor: Anchor?
val info = "condition not met"

val planeAnchor = anchor as? CenterPosePlaneAnchor ?: return println(info)