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