function Test-ConfigurationDataDictionaryKey {
    [CmdletBinding()]
    Param(
        [Parameter(Mandatory=$true)]
        [System.Collections.IDictionary]
        $Dictionary,

        [Parameter(Mandatory=$true)]
        [string]
        $Key
    )

    if($Dictionary -is [System.Collections.Specialized.OrderedDictionary]){
        return $Dictionary.Contains($Key)
    }

    return $Dictionary.ContainsKey($Key)
}