Update app.py

app.py

@@ -35,6 +35,9 @@ def get_current_time_in_timezone(timezone: str) -> str:
 
 @tool 
 def get_stocks(company:str) -> str:
+    """A tool to get the stocks of a company.
+    Args:
+        company: The name of the company"""
     if company == "Tesla":
         return("TSL")
     elif company == "Apple":