{"ast_node_type":"other","tokens":[{"end":89,"kind":"keyword","start":0,"text":"(closure_body_span.shrink_to_hi(),"}]}
                                    (closure_body_span.shrink_to_hi(), " }".to_string()),
                                    (closure_body_span.shrink_to_lo(), format!("{{ {migration_string}; ")),
                                ],