Event Hubs - do agents have access to Secret variables?

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We have a script configured that runs the below block, with some other various things around it specific to our needs. The ArgumentList of ThreadJob contains both a global variable and a secret variable and both are evaluated as they are sent to the agent.

Start-ThreadJob -ThrottleLimit 3 {
            param($url, $tkn, $cid)
            Send-PSUEvent -ComputerName $url -AppToken $tkn -Hub EH_MDM -ConnectionId $cid -Data @{
                Contents = Get-Content "Path\To\Script\Relative\To\Repository.ps1" -Raw
                Parameters = @{
                    MatchQuota = 4
                    AppToken = $tkn
                    SiteRoot = $url
                }
            }
        } -ArgumentList $SiteURL, $Secret:SecretVariable, $EventHubConnection.ConnectionId

Then on the agent we have a script configured very similarly to this one in the documentation:

Hope this helps!

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