How to check if we use AzureRM Powershell?

### Description

Good morning,

We received this email but cannot determine where we are using AzureRM Powershell.

I searched through our different projects and in Azure but nothing.

I need to make sure the migration goes off without a hitch.

Is it possible that I no longer use AzureRM? How do we determine where we use it?

Thanks for your help !

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