What does the /etc/default/zfs do?

[TegarOk]

Im using Voidlinux, i dont have this file and i dont know what is this file do. Can we ignore it? Change it into warning instead return being Error if it didnt exist? I make this file with blank space and no error after that. It seems this file doesnt do anything important, at least i dont need this file to boot from dracut initramfs. I think the file is in generator/generator.go

One more questions, is it support native encryption from ZFS? I cant bypass and got permission denied because the boot didnt ask pass for Encryption pool or volume. I remember there is a zfs_import_params, what does this config do?