In case the MessageTemplates found by the where
argument doesn't exist, create a new MessageTemplates with this data.
Optional
includeChoose, which related nodes to fetch as well
Optional
omitOmit specific fields from the MessageTemplates
Optional
selectSelect specific fields to fetch from the MessageTemplates
In case the MessageTemplates was found with the provided where
argument, update it with this data.
The filter to search for the MessageTemplates to update in case it exists.
MessageTemplates upsert