anchor.diff:  
   + Response 200 (application/json)
   
  -        {
  -            "item_id": {
  +        [
  +            {
  +                "id": id
                   "key": "value"
               }
  -        }
  +        ]
   
   ### Create a New Item [POST]
   
  
positive.code: + Response 200 (application/json)
  
          {
              "key": "value"
          }
  
  
negative.code: + Request (application/json)
  
          {
              "id": id
              "key": "value"
          }
  
  + Response 200 (application/json)
  
          {
              "id": id
              "key": "value"
          }
  
  