OnCallTeamsResource

{
    "onCallNow": [
        {
            "escalationPolicy": {
                "name": "string",
                "slug": "string"
            },
            "users": [
                {
                    "onCallUser": {
                        "username": "string"
                    }
                }
            ]
        }
    ],
    "team": {
        "name": "string",
        "slug": "string"
    }
}