public SpecificEnergy umass() { if (Environment.Is64BitProcess) { return(SpecificEnergy.FromJoulesPerKilogram(CoolPropPINVOKE64.AbstractState_umass(swigCPtr))); } else { return(SpecificEnergy.FromJoulesPerKilogram(CoolPropPINVOKE.AbstractState_umass(swigCPtr))); } }