- Apply Black formatting to all test files
- Fix Mock objects to include tool_calls attribute for len() checks
- Add proper __name__ attributes to mock toolkit methods for @tool decorator
- Create mock_toolkit_fix helper for consistent toolkit mocking
All tests should now pass with proper mocking setup.
- Changed import from tradingagents.dataflows.interface to tradingagents.dataflows.config
- Updated test patches to use correct import path
- Fixes CI test collection failure