CompletionPredictor unable to see ARM parameters in an Azure TemplateSpec

[Ayanmullick]

Summary of the new feature / enhancement

As an Azure admin, I want to request a feature for the CompletionPredictor module to support predicting ARM parameters for the New-AzResourceGroupDeployment cmdlet when using an Azure TemplateSpec as the source so that I can improve the user experience and productivity when deploying Azure resources using a TemplateSpec.

Submitting, as discussed with @azureposh over DM.

Proposed technical implementation details (optional)

Currently, the module can see the Azure cmdlet parameters only and not the ARM parameters.

Screenshot

It would be helpful if the predictor module could suggest the available parameters and allowed values from inside an Azure TemplateSpec resource.

Example Template parameters