[Question] generating code for vendor extensions

I'm looking into using some vendor extension to improve the API backward compatibility. The idea behind is that make it part of the API specification as a vendor extension.

To implement this i would like to plug in the vendor extension based generation part as part of the swagger code generator. Is there a extension point in the code generators that we can do this without forking each code generator to add the support i need ?

The issue does not name a source file, generator entry point, or test to inspect. First determine whether the code generators expose an extension point for vendor extensions, then document the supported approach or the design needed to avoid forking each generator.