{
    "$jsonSchema": {
        "required": [
            "user",
            "admin",
            "date",
            "reason",
            "active",
            "revoke_date"
        ],
        "properties": {
            "user": {
                "bsonType": [
                    "int",
                    "long"
                ],
                "description": "Telegram ID of user"
            },
            "admin": {
                "bsonType": [
                    "int",
                    "long"
                ],
                "description": "Telegram ID of admin"
            },
            "date": {
                "bsonType": "date",
                "description": "Date and time of getting"
            },
            "reason": {
                "bsonType": "string",
                "description": "Broken rule or admin's comment"
            },
            "active": {
                "bsonType": "bool",
                "description": "Whether warning is still present"
            },
            "revoke_date": {
                "bsonType": [
                    "date",
                    "null"
                ],
                "description": "Date when warning got inactive"
            }
        }
    }
}