Update tokenizer_config.json

tokenizer_config.json

@@ -56,7 +56,7 @@
     "<end_of_turn>"
   ],
   "bos_token": "<bos>",
-  "chat_template": "{% if messages[0]['role'] == 'system' %}{{ raise_exception('System role not supported') }}{% endif %}{% for message in messages %}{% if (message['role'] == 'user') != (loop.index0 % 2 == 0) %}{{ raise_exception('Conversation roles must alternate user/assistant/user/assistant/...') }}{% endif %}{% if (message['role'] == 'assistant') %}{% set role = 'model' %}{% else %}{% set role = message['role'] %}{% endif %}{{ '<start_of_turn>' + role + '\n' + message['content'] | trim + '<end_of_turn>\n' }}{% endfor %}{% if add_generation_prompt %}{{'<start_of_turn>model\n'}}{% endif %}",
+  "chat_template": "<bos>{% for message in messages %}{% if message['role'] == 'system' %}{{ '<start_of_turn>system\n' + message['content'] | trim + '<end_of_turn>\n' }}{% elif message['role'] == 'user' %}{{ '<start_of_turn>user\n' + message['content'] | trim + '<end_of_turn>\n' }}{% elif message['role'] == 'model' %}{{ '<start_of_turn>model\n' + message['content'] | trim + '<end_of_turn>\n' }}{% endif %}{% endfor %}{% if add_generation_prompt %}{{'<start_of_turn>model\n'}}{% endif %}<eos>",
   "clean_up_tokenization_spaces": false,
   "eos_token": "<eos>",
   "legacy": null,