Missing function GetVelocity

I’m trying to animate my character with State Machine. I need to use Get Velocity, and I can not find this function in Anim Blueprint. I go into AnimBP and enter the search “Velocity”. What am I doing wrong?

But if I go into Character Graf, I can find function Get Velocity.

How I can resolve my problem and get Z Velocity for animation in State Mashine?

Another problem, the documentation page about the Get Velocity is missing. Error 404 link text

thank you