#![allow(dead_code)]
pub fn generate_random_id(length: usize) -> String {
use rand::Rng;
let charset: &[u8] = b"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
let mut rng = rand::thread_rng();
(0..length)
.map(|_| {
let idx = rng.gen_range(0..charset.len());
charset[idx] as char
})
.collect()
}