Comments can be used in configurations

Comments can be used as key/value-pair as in the following example. There is no desigated key for comments. The key is abitrary but should not collide with other keys.

Example

"...": {
    "name": "root-node",
    "_comment": "this is the root-node",
    "query": {
        "constraint": "...",
        "_comment": "constraint filters all records with ..."
    }
}