{"ast_node_type":"variable","tokens":[{"end":81,"kind":"keyword","start":0,"text":"let"}]}
                            let text = smol_str.as_str().trim_start_matches('_');
                            let smol_str = n.display_no_db(ctx.edition).to_smolstr();
                            let ref_ = ref_of_param(ctx, text, param.ty());