Update app.py

app.py

@@ -33,7 +33,38 @@ def get_current_time_in_timezone(timezone: str) -> str:
     except Exception as e:
         return f"Error fetching time for timezone '{timezone}': {str(e)}"
 
+@tool
+def unit_conversion(value: float, from_unit: str, to_unit: str) -> str:
+    """A tool that converts units like distance, weight, and temperature.
+    
+    Args:
+        value: The numerical value to convert.
+        from_unit: The unit to convert from (e.g., 'miles', 'celsius').
+        to_unit: The unit to convert to (e.g., 'kilometers', 'fahrenheit').
+    
+    Returns:
+        The converted value in the target unit.
+    """
+    
+    conversion_factors = {
+        ("miles", "kilometers"): 1.60934,
+        ("kilometers", "miles"): 0.621371,
+        ("pounds", "kilograms"): 0.453592,
+        ("kilograms", "pounds"): 2.20462,
+        ("celsius", "fahrenheit"): lambda c: (c * 9/5) + 32,
+        ("fahrenheit", "celsius"): lambda f: (f - 32) * 5/9
+    }
+
+    key = (from_unit.lower(), to_unit.lower())
+
+    if key in conversion_factors:
+        conversion = conversion_factors[key]
+        result = conversion(value) if callable(conversion) else value * conversion
+        return f"{value} {from_unit} is {result:.2f} {to_unit}."
+    else:
+        return "Sorry, conversion not supported."
 
+        
 final_answer = FinalAnswerTool()
 
 # If the agent does not answer, the model is overloaded, please use another model or the following Hugging Face Endpoint that also contains qwen2.5 coder: