Update app.py

app.py

@@ -108,7 +108,7 @@ def respond(
     
     if not arguments:
         arguments = "{}"
-    else if arguments.strip()[-1] != "}":
+    elif arguments.strip()[-1] != "}":
         arguments += "}"
     if name:
         result = f"💥 Error using tool {name}, tools doesn't exists"