MKMapView scale in metric system or imperial system? (meter, kilometer; or foot, mile)

How can one set MKMapView scale unit to use the metric system (meter, kilometer) or the imperial system (foot, mile) in an app, in code?

I looked in the SwiftUI documentation, I could not find any mention of this in the MKMapView doc.

My phone is set to use metric system (metres) and Apple Maps does show the scale meters; but not my app.

Thanks

MKMapView scale in metric system or imperial system? (meter, kilometer; or foot, mile)
 
 
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