{"ast_node_type":"other","tokens":[{"end":53,"kind":"keyword","start":0,"text":".map(|nav|"}]}
            .map(|nav| location_link(snap, src, nav))
            .unique_by(|nav| (nav.file_id, nav.full_range, nav.focus_range))
            .collect::<Cancellable<Vec<_>>>()?;