In case the CSCustomMessage found by the where argument doesn't exist, create a new CSCustomMessage with this data.
Optionalinclude?: CSCustomMessageInclude<ExtArgs> | nullChoose, which related nodes to fetch as well
Optionalomit?: CSCustomMessageOmit<ExtArgs> | nullOmit specific fields from the CSCustomMessage
Optionalselect?: CSCustomMessageSelect<ExtArgs> | nullSelect specific fields to fetch from the CSCustomMessage
In case the CSCustomMessage was found with the provided where argument, update it with this data.
The filter to search for the CSCustomMessage to update in case it exists.
CSCustomMessage upsert