{"blocks": [{"key": "badf2939", "text": "Question", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "f3a26ab0", "text": "You are given a transformer-based ML model with four failing unit tests—two bugs are known, two are novel. Identify, debug, and fix each bug so the model trains and evaluates correctly. Given a labeled dataset, write code to train a classifier, analyze the dataset (class balance, feature distributions), and report key performance metrics.", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}], "entityMap": {}}