How to use fractal transformer in Laravel?

I try to use the following library in my project

I have model: Object with fields id, name. It has relation prototypes as one to one.

So, model Prototype has relation Fields. Where model Fields contains fields: name, id.

Also there is separated model: ObjectFields that contains values for each object fields. For example:

object_id | value
1            1

In result I need to get output JSON:

objects : {
   "id" : 1,
   "name" : "Weapon",
   "prototype": {
      "id" : 1,
      "name" : "Prototype Name",
      "fields" : {
          "field_name" : ObjectFields.value
      }
   }
}

Look please on "fields" : { "field_name" : ObjectFields.value } so, It would be field name as key and value from model ObjectFields

via Chebli Mohamed