What does this implement/fix? Explain your changes.

It's a decoder to ease use of C# Func<> method arguments. Previously, it was necessary to cast the python lambda expression to System.Func[...] which is very cumbersome for a script-user.

Does this close any currently open issues?

Was not my intention.

Any other comments?

The solution I used is quite complex as it needs to create wrapper types for each Func-Type-Variant. Code creation is implemented using the IL Code Generator, types are cached, generic type arguments are again converted using ToPython()

I hope my change is of some help!

Checklist

Check all those that are applicable and complete.

• Make sure to include one or more tests for your change
• If an enhancement PR, please create docs and at best an example
• Ensure you have signed the .NET Foundation CLA
• Add yourself to AUTHORS
• Updated the CHANGELOG