function Add-CertificatesToInventoryDictionary {
<#
.SYNOPSIS
    Adds Certificates to the Inventory Dictionary.
#>

    [CmdletBinding()]
    param(
        [Parameter(Mandatory = $true)]
        [Object[]]$certificates
    )

    $logLead  = (Get-LogLeadName);
    $dictionary = New-Object System.Collections.Specialized.OrderedDictionary

    foreach ($cert in $certificates | Group-Object {$_.Thumbprint}) {

        $uniqueCert = $cert.Group | Select-Object -First 1
        $certPropertyHash = Get-CertificatePropertyHash $uniqueCert

        if ($cert.Count -gt 1) {

            $thumbprint = $uniqueCert.Thumbprint
            Write-Warning "$logLead : Certificate With Thumbprint $thumbprint Has a Duplicate Record"
            $certPropertyHash.Add("HasDuplicate", $true)
        }

        $dictionary.Add($uniqueCert.Thumbprint.ToString(), $certPropertyHash)
    }

    return $dictionary
}