Fix docstring formatting in add function

 the untyped-params test returned a, b, an unknown tuple type. Fixed by changing the unused body

Author: Gaurangwad

tests/server/mcpserver/test_func_metadata.py

@@ -1199,7 +1199,7 @@ def _props(meta: Any) -> dict[str, Any]:
 def test_docstring_param_descriptions_google():
     """Parameter descriptions are extracted from a Google-style docstring."""
 
-    def add(a: int, b: int):  # pragma: no cover
+    def add(a: int, b: int):
         """Add two numbers.
 
         Args: