{
    "$schema": "http://json-schema.org/draft-04/schema#",
    "type": "object",
    "properties": {
        "email": {
            "type": "string"
        },
        "firstName": {
            "type": "string"
        },
        "lastName": {
            "type": "string"
        },
        "postedSlides": {
            "type": "boolean"
        },
        "rating": {
            "type": "number"
        }
    },
    "additionalProperties": false
}