Convert code in OpenFL to Python, Java, PHP etc

I saw the conversion method on these pages:

They are good but not if I am coding in Openfl.
What if I have openfl code? I know that all openfl code ultimately converts to haxe code in the export folder. But can I use that haxe code to convert further into java or python? I tried to do that but it stops right at being unable to recognise the package main class resides.