func (env *testEnv) deleteVolumes(pvs []*v1.PersistentVolume) {
	for _, pv := range pvs {
		assumecache.DeleteTestObject(env.internalBinder.pvCache.AssumeCache, pv)
	}
}

func (env *testEnv) deleteClaims(pvcs []*v1.PersistentVolumeClaim) {
	for _, pvc := range pvcs {
		assumecache.DeleteTestObject(env.internalBinder.pvcCache.AssumeCache, pvc)
	}
}

	// something like it (see https://github.com/kubernetes/kubernetes/pull/112202)
	// might have to be managed by the cluster autoscaler.
	claimAssumeCache *assumecache.AssumeCache

	// inFlightAllocations is map from claim UUIDs to claim objects for those claims
	// for which allocation was triggered during a scheduling cycle and the