{
    "additionalProperties": false,
    "description": "A select_content GTM server-side event.",
    "properties": {
        "content_type": {
            "description": "The type of selected content.",
            "maxLength": 4096,
            "type": [
                "string",
                "null"
            ]
        },
        "item_id": {
            "description": "An identifier for the item that was selected.",
            "maxLength": 500,
            "type": [
                "string",
                "null"
            ]
        }
    },
    "self": {
        "format": "jsonschema",
        "name": "select_content",
        "vendor": "com.google.tag-manager.server-side",
        "version": "1-0-0"
    },
    "type": "object"
}