/etc/zfs/zed.d/pool_import-led.sh is in zfs-zed 0.7.5-1ubuntu15.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/zfs/zed.d/pool_import-led.sh
/usr/lib/x86_64-linux-gnu/zfs/zed.d/pool_import-led.sh