tensorflow/models ? reverse-engineered prompt

Build me a TensorFlow model garden repo that collects a few solid example implementations of modern machine learning models, with clear folders for official examples, research models, a community links area, and a small training loop helper library.

I want it to feel like a real open source project people can clone and use right away, with a straightforward install path, basic dependency setup, and simple docs that show how to import the library and run a couple of example notebooks or scripts. Make the official examples easy to read and practical, and make the training loop helper flexible enough to work with different devices like CPU, GPU, and TPU.

Please include enough structure so it could grow into a serious model repository over time, and add a clean README that explains what each part is for and how to get started. If you need to check current TensorFlow docs or best practices, look them up online first.