PowerShell Get SamaccountName от первой и фамилии

$usernames = Import-Csv "filepath.csv" -Header GivenName,Surname -Delimiter "," | ForEach {
  Get-ADUser -Filter {GivenName -like $_.GivenName -and Surname -like $_.Surname} | Select-Object -ExpandProperty sAMaccountName 
}
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