In the case that you're providing an explicit id as an argument, yes. If it were a query, no. It's dangerous to use an empty value for all failed lookups, as yo

In the case that you're providing an explicit id as an argument, yes. If it were a query, no. It's dangerous to use an empty value for all failed lookups, as you can't differentiate between "not found because it doesn't exist" versus "not found because the database went offline for a minute".