How can I use Netmiko to update the banner on an Extreme exos switch?

I have this script so far:

$=================$

from paramiko import SSHClient

from netmiko import ConnectHandler

connect $=$ ConnectHandler$($host$=\text{'}10\mathrm{.}0\mathrm{.}20\mathrm{.}1\text{'},$

username$=$'admin',

password$=$'password',

device$\_$type$=$'extreme$\_$exos'$)$

connect.enable$()$

commandlist $=[\text{'}$unconf banner', 'conf banner before$-$login$\text{'},$ 'TEST BANNER'$]$

output $=$ connect.send$\_$config$\_$set$($commandlist$)$

print$($output$)$

$===============$

when I run the script, the unconfigure banner part works but not the next part that is supposed to create a new banner