I don't really mind if you prefer to talk about it now, I thought there was no need because we can't do anything with them.

An alias is a new type of object we can declare in the serialization. Its label needs to start with a colon and it should point to a template property. Template properties are the properties of a component that are defined in its template using the same start-with-colon syntax, they are accessed through a colon instead of a dot.

```json
{
    ":cell": {
        "alias": "@repetition:iteration"
    },
    
    "repetition": {...}
}
```