Public Function AddAircraft( _
    ByVal AircraftName As String _
) As IAgAvtrAircraft

public IAgAvtrAircraft AddAircraft(
    string AircraftName
);

public: IAgAvtrAircraft^ AddAircraft(
    String __gc ^ AircraftName
);

public: HRESULT AddAircraft(
    BSTR AircraftName,
    IAgAvtrAircraft ** ppAircraft
);

public IAgAvtrAircraft addAircraft(
    String AircraftName
);

def AddAircraft(self, AircraftName:str) -> "IAgAvtrAircraft":