Update app.py

app.py

@@ -23,7 +23,7 @@ class ChatBot:
         new_user_input_ids = tokenizer.encode(input + tokenizer.eos_token, return_tensors="pt")
         flat_history = [item for sublist in self.history for item in sublist]
         flat_history_tensor = torch.tensor(flat_history).unsqueeze(dim=0)
-        bot_input_ids = torch.cat([flat_history_tensor, new_user_input_ids], dim=-1) if self history else new_user_input_ids
+        bot_input_ids = torch.cat([flat_history_tensor, new_user_input_ids], dim=-1) if self.history else new_user_input_ids
         chat_history_ids = model.generate(bot_input_ids, max_length=2000, pad_token_id=tokenizer.eos_token_id)
         self.history.append(chat_history_ids[:, bot_input_ids.shape[-1]:].tolist()[0])
         response = tokenizer.decode(chat_history_ids[:, bot_input_ids.shape[-1]:][0], skip_special_tokens=True)