{
  "operating": {
    "revenue": {"model": "growth"},
    "working_capital": {
      "model": "days",
      "ar_days": 65,
      "ap_days": 45,
      "include_inventory": false
    },
    "da": {"model": "pct_revenue", "pct": 0.04},
    "capex": {"model": "pct_revenue", "pct": 0.05}
  }
}