in pyqldb/cursor/stream_cursor.py [0:0]
def _accumulate(statement_result, query_statistics_key, metric_key, metric_to_accumulate):
query_statistics = statement_result.get(query_statistics_key)
if query_statistics:
metric = query_statistics.get(metric_key)
if metric:
if metric_to_accumulate is None:
metric_to_accumulate = 0
metric_to_accumulate += metric
return metric_to_accumulate