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[];