Update fine_tuning.py

fine_tuning.py

@@ -108,6 +108,7 @@ def preprocess(example):
 # LOAD & TRAIN MODEL
 # -----------------------------
 def load_and_train(model_id="TinyLlama/TinyLlama-1.1B-Chat-v1.0"):
+    global model 
     current_dir = os.path.dirname(os.path.abspath(__file__))
     json_file_path = os.path.join(current_dir, 'makemytrip_qa_full.json')