memento in this case is a simple representation of your entity using arrays, structs, and simple values.this.memento struct on the entity and passing in arguments to the getMemento function.includes. You can change this or add other Mementifier options by defining your own this.memento struct on your entity. Your custom this.memento struct will be merged with Quick's default, so you can only define what changes you need.instanceReady() lifecycle method in this example because retrieveAttributeNames() relies on the entity being wired (though not loaded); it is not otherwise necessary to put this.memento inside instanceReady().getMemento arguments.getMemento function on your entity. In this case, a $getMemento function will be available which is the Mementifier function.getMemento yourself or mapping over the array of results returned by calling asMemento before executing the query. asMemento takes the same arguments that getMemento does. It will pass those arguments on and convert your entities to mementos after executing the query. This works for all the query execution methods - find, first, get, paginate, etc.$renderData method is a special method for ColdBox. When returning a model from a handler, this method will be called and the value returned will be used as the serialized response. This let's you simply return an entity from a handler for your API. By default this will call getMemento().QuickCollection also defines a $renderData method, which will delegate the call to each entity in the collection and return the array of serialized entities.QuickCollection as your entity's newCollection.