diff --git a/JSONAPI.playground/Contents.swift b/JSONAPI.playground/Contents.swift
index 3e84cb5..1558f9f 100644
--- a/JSONAPI.playground/Contents.swift
+++ b/JSONAPI.playground/Contents.swift
@@ -11,7 +11,7 @@ Please enjoy these examples, but allow me the forced casting and the lack of err
 // MARK: - Create a request or response body with one Dog in it
 let dogFromCode = try! Dog(name: "Buddy", owner: nil)
 
-typealias SingleDogDocument = JSONAPIDocument<SingleResourceBody<Dog>, NoIncludes, BasicJSONAPIError>
+typealias SingleDogDocument = JSONAPIDocument<SingleResourceBody<Dog>, NoMetadata, NoLinks, NoIncludes, UnknownJSONAPIError>
 
 let singleDogDocument = SingleDogDocument(body: SingleResourceBody(entity: dogFromCode))
 
@@ -19,7 +19,7 @@ let singleDogData = try! JSONEncoder().encode(singleDogDocument)
 
 // MARK: - Parse a request or response body with one Dog in it
 let dogResponse = try! JSONDecoder().decode(SingleDogDocument.self, from: singleDogData)
-let dogFromData = dogResponse.body.data?.primary.value
+let dogFromData = dogResponse.body.primaryData?.value
 
 // MARK: - Create a request or response with multiple people and dogs and houses included
 let personIds = [Person.Identifier(), Person.Identifier()]
@@ -27,7 +27,7 @@ let dogs = try! [Dog(name: "Buddy", owner: personIds[0]), Dog(name: "Joy", owner
 let houses = [House(), House()]
 let people = try! [Person(id: personIds[0], name: ["Gary", "Doe"], favoriteColor: "Orange-Red", friends: [], dogs: [dogs[0], dogs[1]], home: houses[0]), Person(id: personIds[1], name: ["Elise", "Joy"], favoriteColor: "Red", friends: [], dogs: [dogs[2]], home: houses[1])]
 
-typealias BatchPeopleDocument = JSONAPIDocument<ManyResourceBody<Person>, Include2<Dog, House>, BasicJSONAPIError>
+typealias BatchPeopleDocument = JSONAPIDocument<ManyResourceBody<Person>, NoMetadata, NoLinks, Include2<Dog, House>, UnknownJSONAPIError>
 
 let includes = dogs.map { BatchPeopleDocument.Include($0) } + houses.map { BatchPeopleDocument.Include($0) }
 let batchPeopleDocument = BatchPeopleDocument(body: .init(entities: people), includes: .init(values: includes))
@@ -36,6 +36,6 @@ let batchPeopleData = try! JSONEncoder().encode(batchPeopleDocument)
 // MARK: - Parse a request or response body with multiple people in it and dogs and houses included
 
 let peopleResponse = try! JSONDecoder().decode(BatchPeopleDocument.self, from: batchPeopleData)
-let peopleFromData = peopleResponse.body.data?.primary.values
-let dogsFromData = peopleResponse.body.data?.included[Dog.self]
-let housesFromData = peopleResponse.body.data?.included[House.self]
+let peopleFromData = peopleResponse.body.primaryData?.values
+let dogsFromData = peopleResponse.body.includes?[Dog.self]
+let housesFromData = peopleResponse.body.includes?[House.self]