This module has been designed with modularity in mind. Reusable functionality has been intentionally split into separate functions. For example, the Invoke-AzdoApi function is the main REST API caller, standardising the way this module interacts with the Azure DevOps API.
Main logic is stored under .\scripts folder
If you are developing new functionality, keep the following in mind:
If the logic you are developing has the potential to be duplicated across many functions, consider putting it into its own function.
Unit testing in PowerShell is probably more painful than with other languages. To ease testing efforts, consider wrapping even basic functionality around a function. This will allow you to mock that functionality and save you from duplicating testing logic across multiple scripts (especially where functions call each other).
Put them in the .psm1.