Code Summarization without Direct Access to Code - Towards Exploring Federated LLMs for Software Engineering. The corresponding paper has been accepted in EASE-2024, for further details on the code, methodology, and results, please refer https://doi.org/10.1145/3661167.3661210. The study PEFT LoRA fine-tune an open source model Llama2 using python dataset https://github.com/EdinburghNLP/code-docstring-corpus.