* feat:support zstd compress and uncompressed
* fix:real & stackless write using different pool to avoid get stackless.writer
* fix:zstd normalize compress level
* Change empty string checks to be more idiomatic (#1684)
* chore:lint fix and rebase with master
* chore:remove 1.18 test & upgrade compress version
* fix:error default compress level
* Fix lint
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Co-authored-by: Erik Dubbelboer <erik@dubbelboer.com>
Co1a