how does wcf deserialization instantiate objects but job constructor?

there incantation going wcf deserialization. does instantiate an instance information agreement form but job the constructor?

for example, cruise information contract:

[datacontract]
public closed category createme
{
   [datamember] private readonly twine _name;
   [datamember] private readonly int _age;
   private readonly bool _wasconstructorcalled;

   open createme()
   {
      _wasconstructorcalled = true;
   }

   // ... members here
}

when receiving an instance vigilant around datacontractserializer domain _wasconstructorcalled false.

so, does wcf this? technique others too, dark divided us?