from sports_backtesting import sports_engine
result = sports_engine.run_backtest('nba', 'home_favorite', {})
print('Result keys:', list(result.keys()) if isinstance(result, dict) else type(result))
print('Success:', result.get('success', 'N/A'))
print('Total trades:', result.get('total_trades', 'N/A'))
print('Error:', result.get('error', 'None'))
if result.get('trades'):
    print('Sample trade:', result['trades'][0] if len(result['trades']) > 0 else 'No trades')