Private/Helpers/Get-InstalledModuleInfo.ps1

function Get-InstalledModuleInfo {
    # Returns the highest locally-installed version of $Name, or $null if not found.
    param([string]$Name)
    return Get-Module -Name $Name -ListAvailable -ErrorAction SilentlyContinue |
        Sort-Object -Property Version -Descending |
        Select-Object -First 1
}