Example Automapper API to determine changes made from mapping

MapExample.cs

var person = new Person(name: "James", age: 27);
var update = new PersonUpdate { age = 28 };

var changes = Map.MapWithChanges(update, person); // Theoretical API

if(changes.Any())
  _db.Save(person);
  

As opposed to:

if(person.Name != originalName || person.Age != originalAge)
    _db.Save(person);