def put(self, todo_id):
        """
        This is an example
        ---
        tags:
          - restful
        parameters:
          - in: body
            name: body
            schema:
              $ref: '#/definitions/Task'
          - in: path
            name: todo_id
            required: true
            description: The ID of the task, try 42!
            type: string
        responses:
          201:
            description: The task has been updated
            schema:
              $ref: '#/definitions/Task'
        """
        args = parser.parse_args()
        task = {'task': args['task']}
        TODOS[todo_id] = task
        return task, 201