phfrac2 = feed2.GetProp("phasefraction", "vapor", None, "", "mole")
phfrac4 = phfrac2
line 85:  **out2.SetProp("phasefraction", "vapor", None, "", "mole", phfrac4)**

line 85: The given key was not present in the dictionary.

i would like set ouput stream to be complete vapor form. i dont know how to modify it. please share DWsim python fuctions syntaxs reference.

thanks