code: function(model, options) {
              // Define options
              options = _.defaults(options || {}, {
                  silent: false,
                  render: true
              });
  
              this.stopListening(model);
  
              if (this.items[model.id] == null) return this;
  
              this.items[model.id].remove();
              this.items[model.id] = null;
              delete this.items[model.id];
  
              if (!options.silent) this.trigger("remove", model);
              if (options.render) this.update();
  
              return this;
          }
docs: /*
  Remove a model from the list
  @model : model to remove
  @options