{
  "plan_id": "object-rating-plan",
  "metrics": [
    {
      "name": "storage",
      "rate": "(price, qty) => new BigNumber(price || 0).mul(qty).toNumber()"
    },
    {
      "name": "thousand_light_api_calls",
      "charge": "(t, cost, from, to) => cost ? cost : 0"
    },
    {
      "name": "heavy_api_calls",
      "rate": "(price, qty) => new BigNumber(qty).mul(price || 0).toNumber()"
    }
  ]
}