How to customize event monitoring script to obtain event information via zed

[iskylite]

System information

Type	Version/Name
Distribution Name	RedHat
Distribution Version	7.6
Linux Kernel	3.10.957
Architecture	x86_64
ZFS Version	0.7.13
SPL Version	0.7.13

Describe the problem you're observing

I want to know to customize event monitoring script in /etc/zfs/zed.d to obtain event information via zed。
I also see man zed, but I still don’t know how to customize the script。
please help me

eg: i want to get detach disks event information ， so please tell me what the custom detach events script's name is