From Rosetta Code
This example is incomplete. Please ensure that it meets all task requirements and remove this message.

Insert this message above a programming example using the text {{incomplete|lang|reason}}, where lang is the programming language used and reason an optional description of what is missing. This will put the page in Category:Examples needing attention and Category:Lang examples needing attention and sets Property:Example requires attention.

This is a template. There are many others. See Category:RCTemplates for a complete list of templates.