{
    "$schema": "http://json-schema.org/draft-04/schema#",
    "description": "Describes the Connection API /single base resource",
    "items": {
        "enum": [
            "senders/",
            "receivers/"
        ],
        "type": "string"
    },
    "maxItems": 2,
    "minItems": 2,
    "title": "Connection API /single base resource",
    "type": "array",
    "uniqueItems": true
}