feat(model): Support Llama-3 (#1436)

dbgpt/model/adapter/hf_adapter.py

@@ -270,9 +270,48 @@ class QwenAdapter(NewHFChatModelAdapter):
         )
 
 
+class Llama3Adapter(NewHFChatModelAdapter):
+    """
+    https://huggingface.co/meta-llama/Meta-Llama-3-8B-Instruct
+    https://huggingface.co/meta-llama/Meta-Llama-3-70B-Instruct
+    """
+
+    support_4bit: bool = True
+    support_8bit: bool = True
+
+    def do_match(self, lower_model_name_or_path: Optional[str] = None):
+        return lower_model_name_or_path and "llama-3" in lower_model_name_or_path
+
+    def get_str_prompt(
+        self,
+        params: Dict,
+        messages: List[ModelMessage],
+        tokenizer: Any,
+        prompt_template: str = None,
+        convert_to_compatible_format: bool = False,
+    ) -> Optional[str]:
+        str_prompt = super().get_str_prompt(
+            params,
+            messages,
+            tokenizer,
+            prompt_template,
+            convert_to_compatible_format,
+        )
+        terminators = [
+            tokenizer.eos_token_id,
+            tokenizer.convert_tokens_to_ids("<|eot_id|>"),
+        ]
+        exist_token_ids = params.get("stop_token_ids", [])
+        terminators.extend(exist_token_ids)
+        # TODO(fangyinc): We should modify the params in the future
+        params["stop_token_ids"] = terminators
+        return str_prompt
+
+
 register_model_adapter(YiAdapter)
 register_model_adapter(Mixtral8x7BAdapter)
 register_model_adapter(SOLARAdapter)
 register_model_adapter(GemmaAdapter)
 register_model_adapter(StarlingLMAdapter)
 register_model_adapter(QwenAdapter)
+register_model_adapter(Llama3Adapter)