040000 tree 533ecbb41d6f4225dde4324bf6287a5ed3c55e1a	frequencies
040000 tree ef049fba21ad7731ae5ef742442ec95cfda2ee37	hll
040000 tree 44ab6d2d7922c839b056c4c8c87c5b88cbfef990	kll
040000 tree 49c9d0905d967944fbb9b9f1a87ea193351a0fff	quantiles
040000 tree e9c24b45f41b2c7d438cd810a9fb5f3da1a4bff2	theta
040000 tree 78ae4901e3803060b27aec6da6e3dfad0aed19fe	tuple