Flex Repeater, iterate through based on tag structure value

I would normally write a binding script on the instances param that scans the folder of pumps and for each pump with visibility enabled, I append another instance to a JSON array that becomes the return value that populates the instance parameter.

def transform(self, value, quality, timestamp):
	totalPumpUdts = 10 #Total number of pumps to scan through
	
	tagPaths = []
	instances = []
	
	#Make a list of tag paths to read the pump visibility from
	for pump in range(totalPumpUdts):
		tagPaths.append("[default]PLC Tags/Pumps/Pump " + str(pump+1) + "/Visibility")
	tagResults = system.tag.readBlocking(tagPaths)
	
	#Build instance array
	for visiblePump in tagResults:
		if visiblePump.value:
			instances.append({
			    "instanceStyle": {
			    "classes": ""
			    	},
			    "instancePosition": {},
			    "udtPath": "[default]PLC Tags/Pumps/Pump " + str(visiblePump+1),
				})
	return instances