msinamsina/AI-Graph ? reverse-engineered prompt

Build me a Python library that helps me chain together data processing steps into a simple pipeline. I want to be able to create a pipeline, add custom steps, and pass a dictionary through each step so it gets updated along the way. Please include a few built in steps for adding and removing keys, plus a way to run a step over a list of items or repeat it a fixed number of times and collect the results.

It should be easy to extend with my own steps, have clear examples, and include progress feedback when processing larger batches. Make the code clean, well typed, and tested. I’d also like a small set of example scripts that show how to use it for things like validation, batch processing, and repeated iterations. If you need to check the latest Python packaging or testing best practices, look up current docs online first.