support langfuse tags feature

litellm/integrations/langfuse.py

@@ -230,6 +230,10 @@ class LangFuseLogger:
 
             print_verbose(f"Langfuse Layer Logging - logging to langfuse v2 ")
 
+            if supports_tags:
+                metadata_tags = metadata["tags"]
+                tags = metadata_tags
+
             generation_name = metadata.get("generation_name", None)
             if generation_name is None:
                 # just log `litellm-{call_type}` as the generation name
@@ -274,8 +278,7 @@ class LangFuseLogger:
                     "prompt_tokens": response_obj["usage"]["prompt_tokens"],
                     "completion_tokens": response_obj["usage"]["completion_tokens"],
                     "total_cost": cost if supports_costs else None,
-                }
-
+                }       
             generation_params = {
                 "name": generation_name,
                 "id": metadata.get("generation_id", generation_id),

pyproject.toml

@@ -7,7 +7,7 @@ license = "MIT"
 readme = "README.md"
 
 [tool.poetry.dependencies]
-python = ">=3.8.1,<3.9.7 || >3.9.7"
+python = ">=3.8.1,<4.0, !=3.9.7"
 openai = ">=1.0.0"
 python-dotenv = ">=0.2.0"
 tiktoken = ">=0.4.0"