FakeLinqPad is a library mostly designed to be used with LINQPad queries compiled using LinqPadless. It fakes some of the LINQPad API so that it can be used as a stand-in replacement and LINQPad queries do not have to be re-written when executed without LINQPad.
It is not a goal to provide 100% coverage of the LINQPad API but some
reasonable implementation that works well outside of LINQPad. For example,
the default implementation of the Dump method simply writes to
Console.Error.
If you want to help expand the LINQPad API coverage, create an issue explaining your proposal for review (preferred) or submit a pull request if you think you have it right the first time but can bare the risk of being rejected if you need to start over.