multiple: implement ls_params (#22621)

implement ls_params for ai21, fireworks, groq.

libs/partners/fireworks/langchain_fireworks/chat_models.py

@@ -31,6 +31,7 @@ from langchain_core.callbacks import (
 from langchain_core.language_models import LanguageModelInput
 from langchain_core.language_models.chat_models import (
     BaseChatModel,
+    LangSmithParams,
     agenerate_from_stream,
     generate_from_stream,
 )
@@ -363,6 +364,23 @@ class ChatFireworks(BaseChatModel):
             params["max_tokens"] = self.max_tokens
         return params
 
+    def _get_ls_params(
+        self, stop: Optional[List[str]] = None, **kwargs: Any
+    ) -> LangSmithParams:
+        """Get standard params for tracing."""
+        params = self._get_invocation_params(stop=stop, **kwargs)
+        ls_params = LangSmithParams(
+            ls_provider="fireworks",
+            ls_model_name=self.model_name,
+            ls_model_type="chat",
+            ls_temperature=params.get("temperature", self.temperature),
+        )
+        if ls_max_tokens := params.get("max_tokens", self.max_tokens):
+            ls_params["ls_max_tokens"] = ls_max_tokens
+        if ls_stop := stop or params.get("stop", None):
+            ls_params["ls_stop"] = ls_stop
+        return ls_params
+
     def _combine_llm_outputs(self, llm_outputs: List[Optional[dict]]) -> dict:
         overall_token_usage: dict = {}
         system_fingerprint = None