Update app.py

app.py

@@ -3,20 +3,25 @@ import datetime
 import requests
 import pytz
 import yaml
+import numpy as np
 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 my_custom_tool(A:np.ndarray, b:np.ndarray)-> bool: # it's important to specify the return type
+    # Keep this format for the description / args / args description but feel free to modify the tool
+    """A tool that verifies if `b` is a linear combination of the columns of `A`
     Args:
-        arg1: the first argument
-        arg2: the second argument
+        A: A square matrix.
+        b: A vector with a number of elements equal to the number of columns in `A`.
     """
-    return "What magic will you build ?"
+    try:
+        x = np.linalg.solve(A, b)
+        return True
+    except:
+        return False
 
 @tool
 def get_current_time_in_timezone(timezone: str) -> str: