I'm going to user your library in my project https://github.com/Kakadu/Falka/
Your tool have generatored worng code for
fun a b c ->
match (a,b) with
| (TNumber a,TOperator x) -> AExpr (x, ANumber a,c)
| _ -> failwith "some bug here")
because you haven't investigate TupleGet pattern while decompilation,
Patch added.