I am using Tealium for my Google Universal Analytics tagging, and need to retrieve the value of the GA-assigned "Client ID", and map that back to GA as a value in a custom dimension. I see several articles on how to do this in Google Tag Manager, such as this one https://www.simoahava.com/gtm-tips/use-customtask-access-tracker-values-google-tag-manager/ or this one https://optimizationup.com/expose-client-user-id-google-analytics/. I need to do essentially the same thing, but using Tealium. Can anyone recommend a way to accomplish this?