are there more examples of arrow-meta

[blshao84]

Hi folks, I'm new to arrow and arrow-meta, not sure this is the right place to ask questions :-p
I'm trying to generate some kotlin code based on annotations and came across arrow-meta. After reading this article: https://medium.com/@heyitsmohit/writing-kotlin-compiler-plugin-with-arrow-meta-cf7b3689aa3e, I decided to give it a try but I found examples are very limited, apart from above example, the only thing I could find is the arror-meta-examples project, but example there is just generating a new source, which is a bit simple for me. Here's my use case.

Let's say I have an annotation called @node for functions. For each annotated function in a class, I want to rename this function and generate another wrapper function. For example
before:
class Foo {

@node fun foo(x:Int):Double { ... }

}
after:
class Foo {
fun foo(x:Int):Double = withContext(...) { foo_node(x) }
fun foo_node(x:Int):Double { ... }
}

Playing with arrorw-meta, I'm able to locate the annotated function within 'classBody' deractive, but it seems there's only 'replace', 'newSource' and 'remove' in Transform. What's the best way to do what I described above for renaming and adding new functions?