Integrating experimental redux-orm typings with create-react-app@^3.0.0

• npm install
• npm start

warning: these types are a WIP - likely to change in future

Substitute @types/redux-orm dependency with experimental redux-orm types branch:

{
 //...
 "dependencies": {
    //... 
    "@types/redux-orm": "github:tomasz-zablocki/redux-orm-typings#experimental"
  }
 }

Do not declare instance properties inside class definitions - babel transpiles them into additional prototype properties which interfere with redux-orm descriptors.

1. each Model is defined by a class and an interface with matching identifiers
2. define an interface describing the shape of Model's instances:

   interface SourceModel {
       id: number
       name: string
       target: TargetModel
   }
   
   interface TargetModel {
       id: number
       sources: QuerySet<SourceModel>
   }

3. define related Model class extending Model providing additional type parameter.
   Set the parameter to typeof (TheModelBeingDefined)

   class SourceModel extends Model<typeof SourceModel> {
       static modelName = 'SourceModel' as const
   
       static fields = {
           id: attr(),
           name: attr(),
           target: fk('TargetModel', 'sources')
       }
   }
   
   class TargetModel extends Model<typeof TargetModel> {
       static modelName = 'TargetModel' as const
   
       static fields = {
           id: attr()
       }
   }

Assuming two related Model classes: SourceModel and TargetModel