use log::debug;
use rand::{Rng, thread_rng};
pub fn random_number(max: usize) -> usize {
debug!("[random_number] max {:?}", max);
let _max = max as u128;
let mut rng = thread_rng();
let u = rng.gen_range(0..=_max - 1) as usize;
debug!("[random_number] range value {:?}", u);
u
}