public Optional<ObjectReferencePatch> claimRef() {
        return Optional.ofNullable(this.claimRef);
    }
@return claimRef is part of a bi-directional binding between PersistentVolume and PersistentVolumeClaim. Expected to be non-nil when bound. claim.VolumeName is the authoritative bind between PV and PVC. More info: https://kubernetes.io/docs/concepts/storage/persistent-volumes#binding
sdk/java/src/main/java/com/pulumi/kubernetes/core/v1/outputs/PersistentVolumeSpecPatch.java