{"ast_node_type":"import","tokens":[{"end":92,"kind":"keyword","start":0,"text":"///"}]}
    /// * Under-approximated because we look for syntactic equality and so for complex types
    /// * Over-approximated because we don't consider equality of regions.
    ///   like `<T as Foo<fn(&u32, &u32)>>::Item` or whatever we may fail to figure out