{"ast_node_type":"other","tokens":[{"end":75,"kind":"keyword","start":0,"text":"err.subdiagnostic(errors::SuggestConvertViaMethod"}]}
                        err.subdiagnostic(errors::SuggestConvertViaMethod {
                        let sugg = prefix_wrap(&format!(".map(|v| &{explicit_deref}v)"));
                            span: expr.span.shrink_to_hi(),