// [END build_service]

        public IList <TableRow> ExecuteQuery(string querySql, BigqueryService bigquery, string projectId)
        {
            var request = new Google.Apis.Bigquery.v2.JobsResource.QueryRequest(
                bigquery, new Google.Apis.Bigquery.v2.Data.QueryRequest()
            {
                Query = querySql,
            }, projectId);
            var query = request.Execute();
            GetQueryResultsResponse queryResult = bigquery.Jobs.GetQueryResults(
                projectId, query.JobReference.JobId).Execute();

            return(queryResult.Rows);
        }