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#![cfg_attr(docsrs, feature(doc_auto_cfg))]
#[cfg(feature = "foo")]
pub fn add(left: usize, right: usize) -> usize {
left + right
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn it_works() {
let result = add(2, 2);
assert_eq!(result, 4);
}
}