code: @Override
    public void snapshotAsync(SnapshotDescription snapshot)
        throws IOException, SnapshotCreationException {
      asyncAdmin.snapshot(snapshot);
      LOG.warn("isSnapshotFinished() is not currently supported by BigtableAdmin.\n"
          + "You may poll for existence of the snapshot with listSnapshots(snpashotName)");
    }
docs: {@inheritDoc}