{"ast_node_type":"variable","tokens":[{"end":96,"kind":"keyword","start":0,"text":"if"}]}
    if let Some(idx) = caller_mentioned_items.iter().position(|item| item.node == callee_item) {
    let caller_mentioned_items = caller_body.mentioned_items.as_mut().unwrap();
        // We found the callee, so remove it and add its items instead.