optional/Get-GenericArgumentCompleter.ps1

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if (-not (Get-Command -Name Register-ArgumentCompleter -ErrorAction Ignore))
{
Function Get-GenericArgumentCompleter
{
    param (
        [string]$name,
        [object]$collection
    )
    
    Register-ArgumentCompleter -ParameterName $name -ScriptBlock {
        param (
            $commandName,
            $parameterName,
            $wordToComplete,
            $commandAst,
            $fakeBoundParameter
        )
        
        if ($collection)
        {
            foreach ($item in $collection)
            {
                New-CompletionResult -CompletionText $item -ToolTip $item
            }
        }
    }
}
}