docs: function plugin(derby) {
    // Wrap createBackend in order to be able to listen to derby-ar RPC calls
    // But only do it once (e.g. if we have many apps, we need to ensure we only wrap it once since otherwise we'll destroy the wrapping)
    if(derby.__createBackend) return;
  
    derby.__createBackend = derby.createBackend;
    derby.createBackend = function () {
      // Create backend using regular createBackend method
      var backend = this.__createBackend.apply(this, arguments);
  
      backend.rpc.on('derby-ar', function (data, cb) {
        var path = data.path;
        var method = data.method;
        var args = data.args || [];
  
        var model = backend.createModel();
        var $scoped = model.scope(data.path);
  
        args.push(cb);
  
        $scoped[method].apply($scoped, args);
      });
  
      return backend;
    };
  }