android billing extension ANEs for 64-bit Android compatibility

I asked this question first to Milkman’s company without any results and then the same question to Harman support.

My question was:

“I'm using some Milkman games extensions

Is Milkman plugin:  Android Billing Extension compatible with Android 64-bit?”

Harman answer:
“Unfortunately Milkman Games are no longer active and supporting their ANEs, and they haven’t updated any of the ANEs for 64-bit Android compatibility. Your best option is probably to go with one of the other ANE vendors who are still supporting the ANEs.”

Does anybody know any vendor with an android billing extension for 64-bit Android compatibility?