Update test_serializable_with_model_when_None
Update test_serializable_with_model_when_None

NerdWallet/schematics,promptworks/schematics,mlyundin/schematics,nKey/schematics,kaiix/schematics,ee08b397/schematics,kstrauser/schematics,not-napoleon/schematics,openprocurement/schematics,promptworks/schematics,kstrauser/schematics,ee08b397/schematics,eatfirst/schematics,not-napoleon/schematics