tmrh20 RF24 lib, How to read its stored strings from PROGMEM

I see in rf24.cpp on line 484 that the library stores some strings using PROGMEM, is there a way to retrieve these strings without having to use printDetails? Do I need any additional includes?

I am using the current tmr20 lib on Arduino Uno. Since the strings are already stored, it seems wasteful of memory to define my own strings, which I am doing now.

Thank you