You would be taking snippets of code (that are potentially unparseable), concating them together and putting it in the prompt. The issue is that it would be kind of prompt the model has never seen before in the training data. Maybe it would work with some clever 0-shot prompt. But if you look at the fill in the middle paper from OpenAI for example, they specifically pretrain the model with that kind of data to make it work.

The live data is gonna be useful though ya. Is Copilot allowed to use it though under ToS?