{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "#/components/schemas/Number",
  "title": "Number",
  "type": "object",
  "required": [
    "number",
    "state",
    "tollFreeNumber"
  ],
  "properties": {
    "number": {
      "type": "string",
      "example": "+2145557901",
      "description": "Phone numbers that need to be validated."
    },
    "state": {
      "$ref": "#/components/schemas/NumberState",
      "description": "The state of the number."
    },
    "tollFreeNumber": {
      "type": "boolean",
      "description": "If `true`, it's a toll-free number."
    },
    "detail": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "description": "Error details if the number is unavailable."
    }
  }
}