{"ast_node_type":"import","tokens":[{"end":75,"kind":"keyword","start":0,"text":"//"}]}
        // `use x::{self};` are necessary and so we should not remove them.
        // Returns true iff there is a single subtree and it is not the self keyword. The braces in
        let has_single_subtree_that_is_not_self = |u: &ast::UseTreeList| {