internal/functions/Build-AssignmentParameterObject.ps1

function Build-AssignmentParameterObject {
    # Recursive Function
    param(
        [hashtable] $assignmentParameters,
        [hashtable] $parametersInPolicyDefinition
    )

    $parameterObject = @{}
    if ($parametersInPolicyDefinition -and $assignmentParameters -and $parametersInPolicyDefinition.psbase.Count -gt 0 -and $assignmentParameters.psbase.Count -gt 0) {
        foreach ($parameterName in $parametersInPolicyDefinition.Keys) {
            if ($assignmentParameters.Keys -contains $parameterName) {
                $assignmentParameterValue = $assignmentParameters.$parameterName
                $parameterDefinition = $parametersInPolicyDefinition.$parameterName
                $defaultValue = $parameterDefinition.defaultValue
                $isSameAsDefaultValue = Confirm-ObjectValueEqualityDeep $defaultValue $assignmentParameterValue
                if (!$isSameAsDefaultValue) {
                    $parameterObject[$parameterName] = $assignmentParameterValue
                }
                else {
                    $null = $defaultValue
                }
            }
        }
    }
    $parameterObject
}