Update app.py

app.py

@@ -35,7 +35,11 @@ def get_current_time_in_timezone(timezone: str) -> str:
 
 @tool
 def add_nums(a: int, b: int) -> int:
-    """A tool that takes two integers as parameters and returns their sum."""
+    """A tool that takes two integers as parameters and returns their sum.
+    Args:
+        a: first int
+        b: second int
+        """
     return int(a) + int(b)