public AsyncRowEnumerator(BigqueryQueryJob job)
 {
     _job                = job;
     _options            = _job._options?.Clone() ?? new GetQueryResultsOptions();
     _options.StartIndex = null;
     _options.PageToken  = _job._response.PageToken;
     _underlyingIterator = _job.ResponseRows.GetEnumerator();
 }
 public AsyncRowEnumerable(BigqueryQueryJob job)
 {
     _job = job;
 }