Dishwasher Drain Configuration?

On an inspection today I came across this. First time because I have always seen the drain line connected to the sink drain plumbing. Not sure where this one is going to and no visible traps or air gaps. The High Loop not being present is being reported as is a single P-Trap for a double sink. Main questions is has anyone observed a setup like this. I tried the search here but couldn’t find anything specific to this situation.