Update app.py

Update app.py with the no-op support.

app.py

@@ -63,6 +63,12 @@ FUNCTIONS = [
         description_function=lambda place_1, place_2: "Calculating distances",
         explanation_function=lambda result: result[2],
     ),
+    Function(
+        name="irrelevant_query",
+        short_description="The provided query does not relate to locations, reviews, or recommendations.",
+        description_function=lambda user_query : "Irrelevant query detected.",
+        explanation_function = lambda user_query : "Irrelevant query detected."
+    ),
     Function(
         name="get_recommendations",
         short_description="Read recommendations",
@@ -510,7 +516,10 @@ class RavenDemo(gr.Blocks):
             results_str += f"Result {idx + 1}\n{item_str}\n"
 
         current_time = datetime.now().strftime("%b %d, %Y %H:%M:%S")
-        current_location = self.tools.get_current_location()
+        try:
+            current_location = self.tools.get_current_location()
+        except:
+            current_location = "Current location not found."
 
         prompt = SUMMARY_MODEL_PROMPT.format(
             current_location=current_location,
@@ -587,4 +596,4 @@ if __name__ == "__main__":
         share=True,
         allowed_paths=["logo.png", "NexusRaven.png"],
         favicon_path="logo.png",
-    )
+    )