Expression-bodied method: Return nothing
Methods which do nothing still make sense - they just do nothing.
You can lose the return statement:
private void SomeMethod() { }
Or assign a function to a variable instead:
private Action SomeMethod = () => { };
If you really want to do expression for body on void function, you can do this:
private void SomeFunction() => Expression.Empty();
This uses Linq and creates an empty expression that has Void type.
That's not an expression body, but you can do this:
private void SomeMethod() { }