code: public ListenableFuture<Results> verify(Iterable<Dataset> datasets) {
      return this.exeSvc.submit(getRunner(datasets));
    }
docs: Verify data completeness for a set of {@link Dataset}s.
  
  @param datasets {@link Dataset}s to be verified.
  @return A {@link ListenableFuture<{@link Results}>} object that contains the result of the verification.
  Callers can add listeners or callbacks to it.