sd_rand example

nRF SDK 17.1.0 with SD140 7.2.0

There is no example for how to use the sd_rand library. I've seen scant few posts that mention functions like sd_rand_application_bytes_available_get(), sd_rand_application_vector_get(), and the pool function, but there is no example for how to use this from start (in main) to finish (an array of randomly generated bytes). Could someone please show how this is done.