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ic_commerce/
lib.rs

1fn add(left: usize, right: usize) -> usize {
2    left + right
3}
4
5#[cfg(test)]
6mod tests {
7    use super::*;
8
9    
10    #[test]
11    fn it_works() {
12        let result = add(2, 2);
13        assert_eq!(result, 4);
14    }
15}