This Block is modeled on the schema brought in by Google's BigQuery Transfer Service. It will cover many of the core entities involved with the AdWords offering. Depending on how you use the DFP service, you may have additional entities brought in through the BQ Transfer Service, especially any custom built reports. This Block should serve as a great jump start. Happy modeling!
The schema documentation for YouTube can be found in Google's docs. Please note that your naming might vary slightly.