//! # darkhan crate.
//!//! `darkhan` is a proof of concept crate and contains various things.
/// Adds left and right
////// # Example
////// ```
/// let result: usize = darkhan::add(2, 3);
/// assert_eq!(result, 5);
/// ```
pubfnadd(left:usize, right:usize)->usize{
left + right
}#[cfg(test)]modtests{usesuper::*;#[test]fnit_works(){let result =add(2,2);assert_eq!(result,4);}}