The tutorial outlines a method for using the Predibase SDK to fine-tune and deploy the CodeLlama-7b model to automatically generate Python docstrings, highlighting the efficiency of this approach in reducing the manual effort required for code documentation. By fine-tuning CodeLlama-7b with a curated dataset of 5,800 data rows, the model learns to generate comprehensive in-line docstrings, addressing limitations in existing tools like GitHub Copilot and ensuring data privacy by avoiding third-party services. The process involves curating a dataset using the Code-To-Text dataset from CodeXGlue, then structuring inputs and outputs for the model's training. The model undergoes fine-tuning with a specific prompt template and achieves a BLEU score of 0.3, indicating strong performance given the long output sequences. Evaluations show the model effectively generates docstrings for a range of functions, from simple to complex, and the tutorial suggests potential extensions for other programming languages using the open-source Predibase LoRAX framework. This approach is especially beneficial for organizations concerned about data privacy, as it enables internal handling of code documentation without relying on external applications.