code: def created(cls, data=None):
          
          if cls.expose_status:  # pragma: no cover
              cls.response.content_type = 'application/json'
              cls.response._status_line = '201 Created'
  
          return cls(201, data=data).to_json
docs: Shortcut API for HTTP 201 `Created` response.
  
          Args:
              data (object): Response key/value data.
  
          Returns:
              WSResponse Instance.