Get Invoice

{
  "id": "string",
  "user_ids": [
    "string"
  ],
  "status": "open",
  "due_at": null,
  "amount_original": 0,
  "amount_due": 0,
  "currency": "string",
  "subscription": {
    "subscription_id": "string",
    "period_starts_at": {},
    "period_ends_at": {}
  },
  "state_transitions": {
    "opened_at": {},
    "past_due_at": {},
    "paid_at": {},
    "voided_at": {}
  },
  "next_update": {
    "updates_at": null,
    "update_type": "past_due"
  },
  "created_at": null,
  "updated_at": null
}

{
  "detail": [
    {
      "loc": [
        "string"
      ],
      "msg": "string",
      "type": "string",
      "input": null,
      "ctx": {}
    }
  ]
}