docs: function all(callback) {
          var Model = this;
          var request = {
              find : 'find',
              model : Model
          };
          
          this.dispatch('beforeAll'); 
          this.storage.find(request, function findCallback(data) {
              if (callback) {
                  callback(data);
                  Model.dispatch('afterAll');
              }
          });
          
          return this;
      }