Microsoft Planner - Create plan from template using Azure function and powershell

I would like to replicate this in my tenant using the Azure function with Powershell. Please read the steps involved and assess the code the author has provided - someone who knows what they are doing should complete this within a couple of hours as the code is already provided. I have my own functions in azure already setup with planner, graph api and flow - i just need help with this. [login to view URL] If you have availability Monday morning UK time please respond. Alternatively if you can do this on your own tenant and then handover highlighting the changes happy with that too.