docs: function(modelOrCollection, req, res, next) {
      if (!modelOrCollection) {
        return next();
      }
  
      if (modelOrCollection instanceof Model) {
        // Data is a Model
        res.data = modelOrCollection.render();
      } else if (modelOrCollection instanceof Collection) {
        // Data is a Collection
        res.data = modelOrCollection.render();
      } else {
        // Data is raw
        res.data = modelOrCollection;
      }
  
      return next();
    }