style: Apply linter fixes

tests/basic/test_io.py

@@ -446,29 +446,30 @@ class TestInputOutputMultilineMode(unittest.TestCase):
         self.assertEqual(ensure_hash_prefix("1234567"), "1234567")  # Wrong length
         self.assertEqual(ensure_hash_prefix("xyz"), "xyz")  # Invalid hex chars
         self.assertEqual(ensure_hash_prefix("12345g"), "12345g")  # Invalid hex chars
-        
+
     def test_tool_output_color_handling(self):
         """Test that tool_output correctly handles hex colors without # prefix"""
         from unittest.mock import patch
+
         from rich.text import Text
-        
+
         # Create IO with hex color without # for tool_output_color
         io = InputOutput(tool_output_color="FFA500", pretty=True)
-        
+
         # Patch console.print to avoid actual printing
         with patch.object(io.console, "print") as mock_print:
             # This would raise ColorParseError without the fix
             io.tool_output("Test message")
-            
+
             # Verify the call was made without error
             mock_print.assert_called_once()
-            
+
             # Verify the style was correctly created with # prefix
             # The first argument is the message, second would be the style
             kwargs = mock_print.call_args.kwargs
             self.assertIn("style", kwargs)
-            
-        # Test with other hex color 
+
+        # Test with other hex color
         io = InputOutput(tool_output_color="00FF00", pretty=True)
         with patch.object(io.console, "print") as mock_print:
             io.tool_output("Test message")