{
  "$schema": "https://json-structure.org/meta/core/v0/#",
  "$id": "https://raw.githubusercontent.com/api-evangelist/at-and-t/refs/heads/main/json-structure/mvnx-api-topup-balance-create-structure.json",
  "description": "TopupBalanceCreate schema from AT&T API",
  "type": "object",
  "properties": {
    "channel": {
      "type": "object",
      "properties": {
        "name": {
          "type": "string",
          "example": "API"
        }
      }
    },
    "product": {
      "type": "object",
      "properties": {
        "id": {
          "type": "string",
          "description": "Subscriber product ID",
          "example": "sub-a1b2c3d4"
        }
      }
    },
    "amount": {
      "type": "object",
      "properties": {
        "units": {
          "type": "double",
          "description": "Top-up amount",
          "example": 10.0
        },
        "currency": {
          "type": "string",
          "description": "Currency code (ISO 4217)",
          "example": "USD"
        }
      }
    }
  },
  "name": "TopupBalanceCreate"
}