040000 tree 5b332b2c48d028f610450a7f80ec135d962f4c09	cpc
040000 tree 6461aa2264dbcdb3adaf168f229131fb0bc677ff	frequencies
040000 tree d37c67770ceeb0b12a0bb3acdac13a632c66b7a7	hash
040000 tree 6af9d224c09abd7e36a8b4afe7a0c7633568b988	hll
040000 tree a6404840c9c87fe4f9e2e275793d8ab095249358	kll
040000 tree 0b0c186ebb4e561c07be38d337ee3f697ebda328	quantiles
040000 tree 93abc92b36ad0deb68d0c8f5e767b536d9faa941	sampling
040000 tree bec8ab22c3c00f1ef1c8f658ea67b797202b845a	theta
040000 tree 0a25c5516757296b9645dc5d4b32aac3e0a91e3d	tuple