prompt pool implementation

[androidwoman]

Hi @liaoyuhua,

First of all, I would like to thank you for sharing the code for your Tempo-pytorch implementation. It is a valuable resource for the community and I appreciate your efforts in making it available.

I have a few questions about the Prompt Pool implementation in your code. I am particularly interested in:

How are the prompts in the pool initialized? How is the prompt pool updated over time?