[D] Meta-learning vs Federated Learning?

\[D\] Hey everyone, do you have any suggestions on what's the better option and the most effective way to dive into a hot topic these days?
I stumbled upon a repository for Federated Learning at: 

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* [https://github.com/muditbhargava66/dropgrad](https://github.com/muditbhargava66/dropgrad)
* [https://github.com/adap/flower](https://github.com/adap/flower)

But can't seem to find anything similar for Meta Learning. Any advice on how to pick my PhD topic would be greatly appreciated!

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