ValidateScriptExample.ps1

[ValidateScript({ 
            
    $requiredProperties=@("Property1","Property2","Property3", "Property4")
 
    $members=Get-Member -InputObject $_ -MemberType NoteProperty
 
    $missingProperties=Compare-Object -ReferenceObject $requiredProperties -DifferenceObject $members.Name -PassThru -ErrorAction SilentlyContinue
 
    if (-not($missingProperties)){
                
        $true               
            
    }else{
                
        $missingProperties | ForEach-Object {
 
            Throw [System.Management.Automation.ValidationMetadataException] "Property: '$_' missing"
 
        } 
    }
})]