How to check “Teams Coexistence Mode” for list of users via PowerShell

Param(
    [Parameter(Mandatory=$false,
    ValueFromPipeline=$true)]
    [String[]]
    $csvPath
)

# Check if Teams module is imported
$module = (Get-Module).Name

if ($module -contains "microsoftteams")
{
    Write-Host "Teams module is already loaded, continuing.." -ForegroundColor Green
}
else
{
    Write-Host "Loading MS Teams module.." -ForegroundColor Yellow
    Import-Module MicrosoftTeams    
}

if ($null -eq $csvPath)
{
    Write-Host "Enter path to CSV file (Header should be UPN):" -ForegroundColor Cyan
    $csvPath = Read-Host
}

# Import users
$script:Users = Import-CSV -Path $csvPath
Write-Host $($Users).count " users were loaded.." -ForegroundColor Yellow

# Check users
$data = foreach ($u in $Users)
{
    Write-Host "Checking user: "$u.UPN
    # Get Teams Mode Value
    $tMode = Get-CsOnlineUser -identity $u.UPN | Select-Object TeamsUpgradeEffectiveMode

    $teamsMode = $tMode.TeamsUpgradeEffectiveMode

    if ($null -eq $teamsMode)
    {
        $teamsMode = "none"
    }

    # Prepare custom object for export
    [PSCustomObject]@{
        ID = $u.UPN
        TeamsMode = $teamsMode
    }
}

# Export data to CSV file
$data | Export-CSV -path $env:USERPROFILE\Desktop\usersTeamsMode.csv -NoTypeInformation

Write-Host "Script finished, you will find CSV report on your desktop - usersTeamsMode.csv" -ForegroundColor Green