Google pd.csi.storage.gke.io StorageClass provisioner not supported

[igoooor]

According to https://github.com/miracle2k/k8s-snapshots/blob/master/k8s_snapshots/backends/google.py#L147
it only supports kubernetes.io/gce-pd StorageClass provisioner.
But now GKE also has pd.csi.storage.gke.io which does not comply with the condition bool(volume.obj['spec'].get('gcePersistentDisk')) from line 147
Instead the check could be (bear with me I never wrote python):
bool(volume.obj['spec'].get('gcePersistentDisk')) or bool(volume.obj['spec'].get('csi'))
Maybe the check can be improved, here is the content of that key:

  csi:
    driver: pd.csi.storage.gke.io
    fsType: ext4
    volumeAttributes:
      storage.kubernetes.io/csiProvisionerIdentity: ..............
    volumeHandle: ..........

Again, I don't know python so... but maybe we could check that spec.csi.driver == "pd.csi.storage.gke.io"