docs: function find(id, callback) {
          var Model, request;
  
          Model = this;
          request = {
              action : 'findOne',
              model : Model,
              params : {
                  id : id
              }
          };
          this.storage.findOne(request, function findOneCallback(data) {
              if (callback) {
                  callback(data);
              }
          });
          return this;
      }