public async Task <ActionResult <int> > GetCostAttribute2()
{
int chunk_size = 10;
Log.Information($"Get costattribute, begin");
var length = await _redisSetService.SetLength("collection_key");
int chunk_count = (int)Math.Floor((decimal)length / chunk_size);
for (int i = 0; i < chunk_count; i++)
{
var chunk_length = (i == chunk_count) ? (length % chunk_size) : chunk_size;
var result = _redisSetService.SScan("collection_key", i * chunk_size, (int)chunk_length);
}
Log.Information($"Get costattribute, end");
return(Ok(/*result*/));
}