Add chat template to tokenizer config

tokenizer_config.json

@@ -36,5 +36,10 @@
   "clean_up_tokenization_spaces": false,
   "extra_special_tokens": {},
   "model_max_length": 1000000000000000019884624838656,
-  "tokenizer_class": "PreTrainedTokenizer"
+  "tokenizer_class": "PreTrainedTokenizer",
+  "chat_template": "{% for m in messages %}<|im_start|>{{ m['role'] }}\n{{ m['content'] }}<|im_end|>\n{% endfor %}{% if add_generation_prompt %}<|im_start|>assistant\n<think>\n{% endif %}",
+  "eos_token": "<|im_end|>",
+  "bos_token": "<|im_start|>",
+  "stop": ["<|im_end|>"],
+  "roles": { "user": "user", "assistant": "assistant", "system": "system" }
 }