I found another post that discussed writing to the child vs parent tag.
I was able to write to a specific tag using the below code.
foo = system.tag.getConfiguration("[Alarming]Test/ER200_LIT21_TEST/bHAlm")[0]
foo['alarms'] = [
{
"name": "TEST ALARM",
"enabled": True,
"Priority": "Medium",
"Mode": "Equal",
"setpointA": 1.0,
}
]
system.tag.configure("[Alarming]Test/ER200_LIT21_TEST/", foo)
Looks like I may have been over complicating it. I will tinker with the script from here.