#![allow(dead_code, deprecated, unused_variables, unused_mut)]
use std::fmt::Debug;
use std::any::Any;
fn log<T: Any + Debug>(value: &T) {
    let value_any = value as &dyn Any;
    match value_any.downcast_ref::<String>() {
        Some(as_string) => {
            println!("String ({}): {}", as_string.len(), as_string);
        }
        None => {
            println!("{value:?}");
        }
    }
}
fn do_work<T: Any + Debug>(value: &T) {
    log(value);
}
fn main() {
    let my_string = "Hello World".to_string();
    do_work(&my_string);
    let my_i8: i8 = 100;
    do_work(&my_i8);
}