Add fahrenheit_to_celsius tool

app.py

@@ -7,16 +7,13 @@ from tools.final_answer import FinalAnswerTool
 
 from Gradio_UI import GradioUI
 
-# Below is an example of a tool that does nothing. Amaze us with your creativity !
 @tool
-def my_custom_tool(arg1:str, arg2:int)-> str: #it's import to specify the return type
-    #Keep this format for the description / args / args description but feel free to modify the tool
-    """A tool that does nothing yet 
+def fahrenheit_to_celsius(fahrenheit_degrees: int)-> str:
+    """A tool that transforms Fahrenheit to Celsius 
     Args:
-        arg1: the first argument
-        arg2: the second argument
+        fahrenheit_degrees: temperature in Fahrenheit
     """
-    return "What magic will you build ?"
+    return (fahrenheit_degrees-32) * 5 / 9 
 
 @tool
 def get_current_time_in_timezone(timezone: str) -> str: