Update dice tool

app.py

@@ -23,8 +23,10 @@ def my_custom_tool(arg1:str, arg2:int)-> str: #it's import to specify the return
 def toss_a_die(k: int) -> int:
     """A tool to toss a k-sided die / dice and return the value showing on that die / dice.
     Args:
-        k=6: the number of sides on the die, defaulting to 6 sides when otherwise unspecified"""
-    return 3
+        k: An integer specifying the number of sides on the die. If not specified, a good default would be to assume k=6 sides.
+    """
+    value = 3
+    return f"The random roll of a dice gives a value of {value}"
 
 @tool
 def get_current_time_in_timezone(timezone: str) -> str: