HF_TOKEN= MODEL_NAME=unsloth/Qwen2-0.5B-Instruct-bnb-4bit LOAD_IN_4BIT=true NUM_TRAIN_EPOCHS=10 DATA_PATH=datasets/mac/mac.tsv RESULTS_PATH=results/mac-results-colab.csv EVAL_BASE_MODEL=true DO_FINE_TUNING=false EVAL_FINE_TUNED=false SAVE_FINE_TUNED=false