/// The is a function to add two number of usize type and return the result.
////// # Example
/// ```
/// use simple_math::add;
/// let a = add(10, 20);
/// println!("{a}");
/// ```
//////pubfnadd(left:usize, right:usize)->usize{
left + right
}#[cfg(test)]modtests{usesuper::*;#[test]fnit_works(){let result =add(2,2);assert_eq!(result,4);}}