Will stop if not.
Value
Nothing. Will stop if the RNG seed is invalid
Examples
check_empty_beaustier_folders()
# Numbers from 1 and higher are valid RNG seeds
check_rng_seed(1)
check_rng_seed(2)
# Also NA is a valid RNG seed
check_rng_seed(NA)
#> NULL
check_empty_beaustier_folders()