"""Portfolio attribution analysis."""

from typing import Dict, Any
from qfinlib.portfolio.portfolio import Portfolio
from qfinlib.market.container import MarketContainer


def attribute_pnl(
    portfolio: Portfolio, market: MarketContainer, previous_market: MarketContainer
) -> Dict[str, Any]:
    """Attribute P&L to different risk factors."""
    # Placeholder - actual implementation would decompose P&L
    return {}
