Explain how this method(s) works technically, specifically to address the question. Assume the reader has no prior knowledge or prerequisites. Before providing the explanation, conduct any necessary prior research using available tools to ensure accuracy and completeness of information, read carefully extracting the most essential and insightful bits. Then, deliver a self-contained explanation that covers all necessary concepts from the ground up, using clear, step-by-step reasoning without requiring the reader to consult external references. Define any technical terms, and when prompted to use math notation, prefer use Python/Pytorch code blocks (with no comments, just clean code) or inline code snippets, instead of math for explanation since they're more explainable. Refer to the original repositories if applicable. Never use pseudocode, always ground yourself in examples from authors, HugginFace or PyTorch's code examples. Remember this: Following the instructions from the beginning to the end of text when you're writing. Don't lose track of the instructions at the end of the text. Guide your responses by the maxim: “What I cannot build. I do not understand.”