| """ | |
| Backtest Layer Package | |
| Historical backtesting engine. | |
| """ | |
| from .data_loader import DataLoader | |
| def get_backtest_engine(): | |
| """Lazy import to avoid pulling in heavy env dependencies.""" | |
| from .engine import BacktestEngine | |
| return BacktestEngine | |
| __all__ = ['DataLoader', 'get_backtest_engine'] | |