RD Gateway Active Sessions

Hello!

How can i request Active Sessions number via WMI from RDGateway? So i found PowerShell Script which get numbers i need:

(Get-Counter @("\Terminal Service Gateway\Current connections") -ComputerName "127.0.0.1").CounterSamples.CookedValue

But is any change to make the same via simple WMI request?

I found some classes, but they not work, and i think i miss a little:

root\cimV2\TerminalServices

SELECT ConnectedResource FROM Win32_TSGatewayConnection

Any suggestions?

Thank you!