Writing uncompressed ROOT files

As of ROOT v6.16/00, according to the release notes - https://root.cern/doc/v616/release-notes.html,
the compression algorithms for the fCompress values are -
0 - ZLIB
1 - ZLIB
2 - LZMA
4 - LZ4

Is there a way to write uncompressed ROOT files?

See SetCompressionLevel() and its arguments

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