040000 tree b83e9ef9f69786bb0203d9fb2d3ef6b396da17f9	frequencies
040000 tree 8882c851ad52acdc8cbf5f56ddafcc359bf8c8c5	hll
040000 tree ce8f8d35746d7d04a8ebf089e48172425b64f476	kll
040000 tree bda2466408919f89093069e02118b14e190087db	quantiles
040000 tree b6e173e4972fcd93304808fbf4b31cbee5a042f9	theta
040000 tree 6430b75c9c36cd394f89431e5d79bb551ca36080	tuple