I need to retrieve a price using Stripe API with the tiers, currency_options and tiers inside the currency_options. The following CLI command does return tiers at the root object and currency_options, but not tiers inside the currency_options. Why is that?

I do see the tiers for the currencies in the dashboard for this price.

stripe prices retrieve X 
-d "expand[0]"=tiers 
-d "expand[1]"=currency_options.tiers

Returns:

{
  "id": "X",
  "object": "price",
  "active": true,
  "billing_scheme": "tiered",
  "created": 1717060175,
  "currency": "eur",
  "currency_options": {
    "eur": {
      "custom_unit_amount": null,
      "tax_behavior": "exclusive",
      "unit_amount": null,
      "unit_amount_decimal": null
    },
    "usd": {
      "custom_unit_amount": null,
      "tax_behavior": "exclusive",
      "unit_amount": null,
      "unit_amount_decimal": null
    }
  },
  "custom_unit_amount": null,
  "livemode": false,
  "lookup_key": null,
  "metadata": {},
  "nickname": null,
  "product": "X",
  "recurring": {
    "aggregate_usage": null,
    "interval": "month",
    "interval_count": 1,
    "meter": null,
    "trial_period_days": null,
    "usage_type": "licensed"
  },
  "tax_behavior": "exclusive",
  "tiers": [
    {
      "flat_amount": null,
      "flat_amount_decimal": null,
      "unit_amount": 1500,
      "unit_amount_decimal": "1500",
      "up_to": 10
    },
    {
      "flat_amount": null,
      "flat_amount_decimal": null,
      "unit_amount": 1200,
      "unit_amount_decimal": "1200",
      "up_to": null
    }
  ],
  "tiers_mode": "volume",
  "transform_quantity": null,
  "type": "recurring",
  "unit_amount": null,
  "unit_amount_decimal": null
}