{"ast_node_type":"other","tokens":[{"end":81,"kind":"keyword","start":0,"text":"SelfKind::Pinned(None,"}]}
            SelfKind::Pinned(None, mutbl) => format!("&pin {}", mutbl.ptr_str()),
            SelfKind::Region(Some(lt), mutbl) => format!("&{lt} {}", mutbl.prefix_str()),
            SelfKind::Pinned(Some(lt), mutbl) => format!("&{lt} pin {}", mutbl.ptr_str()),