anchor.diff:  + 2: (Deck2)
   
   ### FlashcardCollection (array)
  -+ 0: (Flashcard0)
  -+ 1: (Flashcard1)
  -+ 2: (Flashcard2)
  ++ (Flashcard0)
  ++ (Flashcard1)
  ++ (Flashcard2)
   
   ### DeckWithCountCollection (array)
   + 0: (DeckWithCount0)
  
positive.code: 
      This response is returned when flashcard was created.
      
      + Headers
  
              Access-Control-Expose-Headers: Location
              Location: /decks/1111-0000-0000-000000000001/flashcards/1111-0000-0000-000000000002
  
      + Attributes (Flashcard)
  
  ### Get Flashcard by ID [GET /decks/{deckId}/flashcards/{flashcardId}]
  
negative.code: 
  + Response 200 (application/json)
      + Attributes (Deck)
  
  
  ### Get all Decks [GET]
  
  + Response 200 (application/json)
  