TestMFA.ps1

$AuthenticationType = New-Object ($ns + ".AuthenticationType")
$callResult = New-Object ($ns + ".CallResult")    
$authenticationRequestId = $null
[bool] $requireUserMatch = $true 
$initiatingAuthenticationType ="pfsdk"

$result = $proxy.PfAuthUser_4([string]$mfauser,[object] $initiatingAuthenticationType, [string] "192.168.20.6", [string] "Test Script", [bool] $requireUserMatch, [ref] $callResult, [ref] $authenticationRequestId,  [ref]$errorcode)

Write-Host "MFA Call Result Code: " $callResult.Code
Write-Host "MFA Call Result Description: " $callResult.Description  
Write-Host "MFA AuthN Request ID: " $authenticationRequestId