anchor.diff:                  }
               }
   
  -
  -## GET /api/messages{?since}
  -+ Parameters
  -    + since (optional, string) ... Timestamp in ISO 8601 format: `YYYY-MM-DDTHH:MM:SSZ` Only Messages updated at or after this time are returned.
  -
  -+ Request
  -
  -    + Headers
  -
  -            Accept: application/hal+json
  -
  -+ Response 200 (application/hal+json)
  -
  -    + Headers
  -
  -            Link: <https://helpful.io/api/messages>;rel="self"
  -
  -    + Body
  -
  -            {
  -                "items": [
  -                    "id": "bb7aae7e-c560-4b3d-b235-71e4305952b8",
  -                    "type": "message",
  -                    "content": "Hello World!",
  -                    "created": "2013-12-08T13:08:14.758Z",
  -                    "updated": "2013-12-08T13:08:14.758Z",
  -                    "data": {
  -                        "foo": "bar"
  -                    },
  -                    "_links": {
  -                        "self": {
  -                            "href": "https://helpful.io/api/messages/bb7aae7e-c560-4b3d-b235-71e4305952b8"
  -                        },
  -                        "author": {
  -                            "href": "https://helpful.io/api/people/10ce24de-23f6-433f-9a71-255cffffa96f"
  -                        },
  -                        "conversation": {
  -                            "href": "https://helpful.io/api/conversations/9aedccd5-0261-4158-bc1c-0e377b306f02"
  -                        }
  -                    }
  -                ],
  -                "count": 1
  -            }
  +## Fetch a message [GET]
  +
  ++ Request
  +    + Headers
  +
  +            Accept: application/vnd.helpful.v1+hal+json
  +
  ++ Response 200
  +
  +    [Message][]
  +
  +
   
   ## POST /api/messages/{message_id}/read-receipts
   
  
positive.code: *TODO* The values of the data object determine special properties of the message.
  
  
  ## POST /api/messages
  
  + Request
  
      + Headers
  
              Accept: application/hal+json
              Content-Type: application/hal+json
  
      + Body
  
  
negative.code: 
      + Headers
  
              Accept: application/vnd.helpful.v1+hal+json
              Content-Type: application/json
  
      + Body
  
  