Having trouble calling a shared script from a tag change event

Trying to do something a bit difficult: change UDT parameters using a expression tag’s value change event.
Someone else already did the hard work: figured out how to write UDT parameter in runtime.
Here is the code:
from com.inductiveautomation.ignition.common.config import Property, BasicProperty
from java.lang import String

def writeUDTParameter( tag, key, value ):
propertiesList = system.tag.read( ‘%s.ExtendedProperties’ % tag ).value
propertiesList.set(BasicProperty( key, String ), value)
system.tag.editTag( tagPath=tag, attributes={ ‘ExtendedProperties’: propertiesList } )

Code works fine in the Script test window. Put it into the shared Script library, and when I call it from the Tag Change event:
shared.writeUDTParameter(’[default]San Antonio/DailyTest/DailyFloats’, ‘monthtgt’, currentValue.value )

I get this error:
File “tagevent:valueChanged”, line 2, in valueChanged
AttributeError: ‘com.inductiveautomation.ignition.common.script.Scr’ object has no attribute ‘writeUDTParameter’

I am pretty novice with scripting, so I am probably just getting some of the syntax wrong. Any help would be appreciated.
Thanks!

You seem to be missing the name of the shared script in between ‘shared’ and ‘writeUDTParameter’.

That was it!
Thanks Phil!