from typing import Dict, Any, List, Optional


def interactive_dashboard(
    widgets: Optional[List[Dict[str, Any]]] = None,
    charts: Optional[List[Dict[str, Any]]] = None,
    layout: str = "grid",
    title: Optional[str] = None
) -> Dict[str, Any]:
    """Interactive Dashboard (placeholder spec)."""
    return {
        "type": "dashboard",
        "title": title or "Interactive Dashboard",
        "layout": layout,
        "widgets": widgets or [],
        "charts": charts or [],
    }
