sms.SMSContactGroup

{
    "contact_count": 0,
    "contacts": [
        {
            "created_at": "string",
            "email": "string",
            "first_name": "string",
            "id": "string",
            "is_subscribed": true,
            "last_name": "string",
            "metadata": {
                "property1": "string",
                "property2": "string"
            },
            "organization_id": "string",
            "phone_number": "string",
            "updated_at": "string"
        }
    ],
    "created_at": "string",
    "description": "string",
    "id": "string",
    "name": "string",
    "organization_id": "string",
    "updated_at": "string"
}