WebbotLib Studio: UART isRxBufferEmpty function?

[Gertlex]

In the past, WebbotLib had a .isRxBufferEmpty() function for UARTs.

Is this no longer the case for the newer versions of the libraries in WebbotLib Studio? E.g. referencing the docs, no such method is listed at: %HOMEPATH%/Documents/webbotstudio/webbot/docs/AVR8/html/classwebbotlib_1_1_uart.html

It would be nice to not have to completely redo code that I've used for years so that it instead uses the .attach() method...

[mklrobo]

   Hello!
I would love to be able to help you, but I have just learned to program the Axon II, and now
am beginning to learn the command structure. I have found, that recently, most people in the
forum somewhere in the same spot I am in. If you have a simple program to turn pins on and off,
that would be a great help! 
I have, however, looked through the docs that I have, and could not find the info you are looking for. 

[Gertlex]

I stuck with using Webbotlib 2.11 and Project Designer.