{
    "extensions": {
        "roots": [
            {
                "id": "scratch:root",
                "model": {
                    "type": "folder",
                    "composition": [],
                    "name": "Scratchpad"
                },
                "priority": "preferred"
            }
        ],
        "components": [
            {
                "provides": "persistenceService",
                "type": "provider",
                "implementation": "ScratchPersistenceProvider.js",
                "depends": [ "$q" ]
            }
        ]
    }
}