我可以使用以下查询来概括所有不同计数的 HLL 草图：
SELECT category, count(distinct city), HLL_COUNT.INIT(city) FROM `table`
GROUP BY category
我得到这样的东西：
虽然我通常会使用该HLL_COUNT.merge(...)函数来获取总数，例如：
select 'all -- hll', HLL_COUNT.MERGE(x), null from (select category, count(distinct city), HLL_COUNT.INIT(city) x from `datadocs-163219.010ff92f6a62438aa47c10005fe98fc9.inv` group by category) _
由于各种原因，我需要做MERGESQL/BigQuery 之外的事情。是否有某种库/开源库，我可以在其中执行以下操作：
>>> hll_set
>>> {'CHAQMBgCIAuCBz8QFBgPIBQyN8hxlqEBvMMBnLMBgWnD5gTB3AH+ROgD/YMEpM8Jr70C6Q2LwwfZlQ3QMNu8AYDSBKf7AbOSqgE=', 'CHAQDhgCIAuCBxwQBxgPIBQyFP3PBMBtibMR3sgC77oViasKwfMF', 'CHAQJxgCIAuCBzIQEBgPIBQyKshxlqEBvMMBzfECh6gJxJABoNwF/rEGwf0PgYYFvOoFmzjJPZwg2y3nbw==', 'CHAQBBgCIAuCBw4QAhgPIBQyBpSJAfapKA==', 'CHAQBRgCIAuCBxEQAxgPIBQyCbaJBfqsH57tBw==', 'CHAQGBgCIAuCBykQDRgPIBQyId6SAtNvwJ0XgO8Ct/EFlvUOskG1E87ZA7/OApwg2y3nbw==', 'CHAQZhgCIAuCB2MQIxgPIBQyW5SJAcqJAbzDAcvcAoIV2xSMFsTyA42IAYkl+Wvj/AHqdJxRlEGbywG/WNjoAqS9BP3CAuPrBNSFAfdDt+YEoeIBr+ICmIYF6CL/MaLNAqKdA8k9rxntBrPVrAE=', 'CHAQEBgCIAuCByQQChgPIBQyHN6SAqjtArAJ/esCj9wSg+8KiVKNygHrpgXIogU=', 'CHAQpgkYAiALggfZAhChARgPIBQyzwKPBMwRkAzxP+wPogyqC8qJAeBo8BHsSOypAbAJriL+MYYR/1jnKqIyzR3wJIkI/QXkecNH7WCzQZgMuDvxFLh+xkboA7QB12akDhu5E+4+3KgBjAZ4nxLBRMw0xRWvIPZYszt+v1gnz2a0BZoF4wzQggHqOewsJeAxgguGErUCjGG3KuhKgUyfCtItkjOMZZwCpi3phgHlA+wRknEhwiq1Os4slgmhELEWl1f1rgH+B6e4AdCtAdkE4R7fK/gihHSRFqipAbYY9BmqP5oBgqsBvhrvEKGRAcpj7XHEVaAUrY8BylLRDgWn1wGpT6IS6irPHewb/AbKHqgQjQPyAeU82zuSHpgQ04UBzwqkFIADiBD4X6ABjBihFsIy6wmovgHNKssPsQOvGcADrQOQevMQvxKMBtANizqbP7l21+kB0UDxY92rVYCBMcD5H8CiEA=='}
>>> hll_merge_method(hll_set)
>>> 193
是否可以使用 BQ 之外的库以及从中生成的哈希以任何方式执行此操作？