export declare const TRACER_NAME = "n8n-expression-runtime";
export declare const ATTRIBUTE: {
    readonly EXPRESSION_ENGINE: "expression.engine";
    readonly EXPRESSION_DURATION_SECONDS: "expression.duration_seconds";
    readonly EXPRESSION_OUTCOME: "expression.outcome";
    readonly EXPRESSION_ERROR_TYPE: "expression.error.type";
};
export declare const DURATION_BUCKETS_SECONDS: number[];