{"ast_node_type":"variable","tokens":[{"end":63,"kind":"keyword","start":0,"text":"if"}]}
        if let Some(impl_of) = self.tcx.impl_of_assoc(def_id) {
    fn should_ignore_item(&mut self, def_id: DefId) -> bool {
            if !self.tcx.is_automatically_derived(impl_of) {