code: function (query, queryOptions, callback) {
      if (typeof query === 'function') {
        callback = query;
        query = {};
        queryOptions = {};
      }
      if (typeof queryOptions === 'function') {
        callback = queryOptions;
        queryOptions = {};
      }
  
      this.collection.findViewModels(query, queryOptions, callback);
    }
docs: Loads a viewModel array by optional query and query options.
  @param {Object}   query        The query to find the viewModels. (mongodb style) [optional]
  @param {Object}   queryOptions The query options. (mongodb style) [optional]
  @param {Function} callback     The function, that will be called when the this action is completed.
  `function(err, vms){}` vms is of type Array.