intermediate property record for water (p and T prefered states)
function waterBaseProp_pT extends Modelica.Icons.Function; input Units.SI.Pressure p "pressure"; input Units.SI.Temperature T "temperature"; input Integer region = 0 "if 0, do region computation, otherwise assume the region is this input"; output ThermoSysPro.Properties.WaterSteam.Common.IF97BaseTwoPhase aux "auxiliary record"; end waterBaseProp_pT;