Incorporating winform building with runspaces

Hello. I see that any forms generated will be automatically imported via

Add-Type -AssemblyName System.Windows.Forms

. (Join-Path $PSScriptRoot 'runspace_examp.designer.ps1')

$Form1.ShowDialog()

When reading up on runspaces, specifically in the vein of having responsive UI in powershell programs, I cannot quite see how to safely to import this into a shared hash, as any example I view has us do so at creation time(The buttons, forms, etc being added individually.) I was curious if this still holds up, and if there were any creative folk around who have managed to incorporate runspaces with poshtool’s winform designer