/**
 * Log an error using OpenTelemetry span events.
 *
 * When an Error object is provided, exception details (message, type, stack trace)
 * are automatically added as event attributes for easier debugging.
 *
 * If called outside a traced context, falls back to console.error.
 *
 * @param message - Error message
 * @param error - Optional Error object (if this is an exception)
 * @param attributes - Optional custom attributes
 *
 * @example
 * ```typescript
 * try {
 *   await riskyOperation();
 * } catch (err) {
 *   logError('Failed to fetch data', err, {
 *     'operation': 'fetch',
 *     'retry.count': 3
 *   });
 * }
 * ```
 */
export declare const logError: (message: string, error?: Error, attributes?: Record<string, any>) => void;
/**
 * Log a warning using OpenTelemetry span events.
 *
 * If called outside a traced context, falls back to console.warn.
 *
 * @param message - Warning message
 * @param attributes - Optional custom attributes
 *
 * @example
 * ```typescript
 * logWarning('Fragment count exceeds threshold', {
 *   'fragment.count': 150,
 *   'fragment.threshold': 100,
 *   'content.type': 'ArticlePage'
 * });
 * ```
 */
export declare const logWarning: (message: string, attributes?: Record<string, any>) => void;