first working types

functions/public/Get-Vlan.ps1

@@ -1,5 +1,6 @@
 function Get-Vlan {
     [CmdletBinding(DefaultParameterSetName="ByID")]
+    [OutputType([PS.IPAM.Vlan])]
     param (
         [parameter(Mandatory=$false,ValueFromPipeline=$true,ValueFromPipelineByPropertyName=$true,Position=0,ParameterSetName="ByID")]
         [ValidateScript({ $_ -match "^\d+$" })]
@@ -15,31 +16,40 @@ function Get-Vlan {
         [ValidateScript({ $_ -match "^\d+$" })]
         [ValidateNotNullOrEmpty()]
         [string]
-        $L2DomainId
+        $L2DomainId,
+        [parameter(Mandatory=$false,ValueFromPipeline=$true,ValueFromPipelineByPropertyName=$true,Position=0,ParameterSetName="BySubnetObject")]
+        [ValidateNotNullOrEmpty()]
+        [PS.IPAM.Subnetwork]
+        $SubnetObject
     )
     process {
-        [string[]]$visiblePropertiesList = @('Id','Name','Description')
-        $visibleProperties = [System.Management.Automation.PSPropertySet]::new('DefaultDisplayPropertySet',$visiblePropertiesList)
-
         $_params = @{
-            Controller = "vlan"
-            Method     = "GET"
+            Controller = [PS.IPAM.controllers]::vlan
+            Method     = [PS.IPAM.methods]::GET
+            Type       = [PS.IPAM.types]::Vlan
         }
         switch ($PSCmdlet.ParameterSetName) {
-            "ByID"      { $_identifiers = @($Id) }
-            "ByNumber"  { $_identifiers = @("search",$Number) }
+            "ByID"      { $_identifiers = @($Id); break }
+            "ByNumber"  { $_identifiers = @("search",$Number); break }
             "ByL2Domain"{
-                $_params.Item("Controller") = "l2domains"
+                $_params.Item("Controller") = [PS.IPAM.controllers]::l2domains
 
                 $_l2domainId = $L2DomainId
 
-                $_identifiers = @($_l2domainId,"vlans")
+                $_identifiers = @($_l2domainId,[PS.IPAM.subcontrollers]::vlans)
+                break
+            }
+            "BySubnetObject" {
+                if ($SubnetObject.VlanId) {
+                    $_identifiers = @($SubnetObject.VlanId); break
+                } else {
+                    return $null
+                }
             }
         }
         $_params.Add("Identifiers",$_identifiers)
 
-        Invoke-Request @_params | Select-Object @{n="id";e={$_.vlanId}},* | Select-Object -ExcludeProperty vlanId | `
-            Add-Member -MemberType MemberSet -Name PSStandardMembers -Value $visibleProperties -PassThru
+        Invoke-Request @_params
     }
 }
 Export-ModuleMember -Function Get-Vlan