round AwayFromZero and ToEven

[sameedaris]

I am using System.Math Round method with flee. As we know there are two method to round a number Away from zero and ToEven.
My Expression is "round(0.5)" it always returns 0.
I want it to return 1 when it is .5 normally in c# We use Math.Round(.5,MidpointRounding.AwayFromZero).
Please tell me how to achieve same with flee.