code: public String queryVsanStatistics(String[] labels) throws RuntimeFault, RemoteException {
          return getVimService().queryVsanStatistics(getMOR(), labels);
      }
docs: Query VSAN system statistics. This is a low level API that gathers low level statistic counters from the system.
  The details of the counters remain undocumented and unsupported at this point, and this API remains internal.
  The data for this API call mostly comes from VSI, but also other tools like memstats. The caller can control
  which counters are being retrieved by providing a list of labels.
  The following labels are current supported: - TBD
  
  @param labels List of labels of counters to retrieve.
  @return JSON string with the results
  @throws RuntimeFault
  @throws RemoteException
  @since 6.0