simple joke

Include a joke

app.py

@@ -18,6 +18,12 @@ def my_custom_tool(arg1:str, arg2:int)-> str: #it's import to specify the return
     """
     return "What magic will you build ?"
 
+@tool
+def get_a_joke():
+    """A tool to return a joke.
+    """
+    return "Why did the DevOps engineer break up with the cloud?,Because it kept throwing unexpected bills!😆"
+
 @tool
 def get_current_time_in_timezone(timezone: str) -> str:
     """A tool that fetches the current local time in a specified timezone.