public interface IWitholdingTaxDefinitionService { WTDCodeParamsCollection AddWTDCode( WTDCode pIWTDCode); void Delete( WTDCodeParamsCollection pIWTDCodeParamsCollection); WTDCode Get( WTDCodeParams pIWTDCodeParams); object GetDataInterface( WitholdingTaxDefinitionServiceDataInterfaces enumMSDI); object GetDataInterfaceFromXMLFile( string bstrFileName); object GetDataInterfaceFromXMLString( string bstrXMLString); void UpdateWTDCode( WTDCode pIWTDCode); }