Zim

according to [pep-0503](https://www.python.org/dev/peps/pep-0503/) , we should support all the hash functions in `hashlib` module in the Python standard library (currently md5, sha1, sha224, sha256, sha384, sha512)

> This seems to be a bug in poetry-core 1.0.5. With poetry-core 1.0.4 packages with md5 hashes are installed normally. It's not the bug in poetry-core 1.0.5, the problem always...

在使用 maven poi 的时候, 发现 zip64 有兼容问题, poi 5.x 之后默认使用 zip64, 通过 [SXSSFWorkbook.setZip64Mode](https://poi.apache.org/apidocs/dev/org/apache/poi/xssf/streaming/SXSSFWorkbook.html#setZip64Mode-org.apache.commons.compress.archivers.zip.Zip64Mode-) 可以关闭 zip64. 跟这个 issue 可能有关联.

I suggest to add [HyperLogLog](https://en.wikipedia.org/wiki/HyperLogLog) for approximating counting.