fix: fix the lint check errors of the main branch (#403)

tests/unit/tools/test_crawl.py

@@ -1,4 +1,3 @@
-import pytest
 from unittest.mock import Mock, patch
 from src.tools.crawl import crawl_tool
 

tests/unit/tools/test_decorators.py

@@ -1,10 +1,8 @@
 # Copyright (c) 2025 Bytedance Ltd. and/or its affiliates
 # SPDX-License-Identifier: MIT
 
-import pytest
-import logging
-from unittest.mock import Mock, call, patch, MagicMock
-from src.tools.decorators import LoggedToolMixin, create_logged_tool
+from unittest.mock import Mock, call, patch
+from src.tools.decorators import create_logged_tool
 
 
 class MockBaseTool:
@@ -58,7 +56,7 @@ class TestLoggedToolMixin:
         tool = LoggedTool()
 
         with patch("src.tools.decorators.logger.debug") as mock_debug:
-            result = tool._run("test_arg")
+            tool._run("test_arg")
 
             # Verify debug log was called with correct message
             mock_debug.assert_has_calls(

tests/unit/tools/test_python_repl.py

@@ -2,7 +2,7 @@
 # SPDX-License-Identifier: MIT
 
 import pytest
-from unittest.mock import Mock, patch, MagicMock
+from unittest.mock import patch
 from src.tools.python_repl import python_repl_tool
 
 

tests/unit/tools/test_search.py

@@ -3,7 +3,7 @@
 
 import os
 import pytest
-from unittest.mock import patch, MagicMock
+from unittest.mock import patch
 from src.tools.search import get_web_search_tool
 from src.config import SearchEngine
 

tests/unit/tools/test_tavily_search_api_wrapper.py

@@ -3,7 +3,6 @@
 import json
 import pytest
 from unittest.mock import Mock, patch, AsyncMock, MagicMock
-import aiohttp
 import requests
 from src.tools.tavily_search.tavily_search_api_wrapper import (
     EnhancedTavilySearchAPIWrapper,

tests/unit/tools/test_tavily_search_results_with_images.py

@@ -4,7 +4,6 @@
 import json
 import pytest
 from unittest.mock import Mock, patch, AsyncMock
-from typing import Dict, Any
 from src.tools.tavily_search.tavily_search_results_with_images import (
     TavilySearchResultsWithImages,
 )

tests/unit/tools/test_tools_retriever.py

@@ -1,7 +1,7 @@
 # Copyright (c) 2025 Bytedance Ltd. and/or its affiliates
 # SPDX-License-Identifier: MIT
 
-from unittest.mock import Mock, patch, MagicMock
+from unittest.mock import Mock, patch
 from langchain_core.callbacks import (
     CallbackManagerForToolRun,
     AsyncCallbackManagerForToolRun,