presto-raptor-legacy/src/main/java/io/prestosql/plugin/raptor/legacy/storage/StorageManagerConfig.java/StorageManagerConfig/setOneSplitPerBucketThreshold
class StorageManagerConfig:    @Config("storage.one-split-per-bucket-threshold")
    @ConfigDescription("Experimental: Maximum bucket count at which to produce multiple splits per bucket")
    public StorageManagerConfig setOneSplitPerBucketThreshold(int oneSplitPerBucketThreshold)
    {
        this.oneSplitPerBucketThreshold = oneSplitPerBucketThreshold;
        return this;
    }