Fixes, added session class

functions/public/Get-L2Domain.ps1

@@ -1,9 +1,8 @@
 function Get-L2Domain {
-    [CmdletBinding(DefaultParameterSetName="NoParams")]
+    [CmdletBinding(DefaultParameterSetName="ByID")]
     [OutputType([PS.IPAM.Domain])]
     param (
         [parameter(Mandatory=$false,ValueFromPipeline=$true,ValueFromPipelineByPropertyName=$true,Position=0,ParameterSetName="ByID")]
-        [ValidateScript({ $_ -match "^\d+$" })]
         [ValidateNotNullOrEmpty()]
         [int]
         $Id
@@ -11,16 +10,11 @@ function Get-L2Domain {
     process {
         $_params = @{
             Controller = [PS.IPAM.controllers]::l2domains
-            Method     = [PS.IPAM.methods]::GET
+            Method     = "GET"
             Type       = [PS.IPAM.types]::Domain
         }
         
-        switch ($PSCmdlet.ParameterSetName) {
-            "ByID" {
-                $_identifiers = @($Id)
-            }
-        }
-
+        $_identifiers = @($Id)
         $_params.Add("Identifiers",$_identifiers)
 
         Invoke-Request @_params