/**
 * Common log enrichers
 */
import type { LogEntry, LogEnricher } from './types.js';
/**
 * Add hostname to log entry
 */
export declare const addHostInfo: LogEnricher;
/**
 * Add environment from NODE_ENV
 */
export declare const addEnvironment: LogEnricher;
/**
 * Add service info from environment variables
 */
export declare const addServiceInfo: LogEnricher;
/**
 * Add process info (PID, memory, uptime)
 */
export declare const addProcessInfo: LogEnricher;
/**
 * Add timestamp if not present
 */
export declare const addTimestamp: LogEnricher;
/**
 * Sanitize sensitive data from log entry
 */
export declare const sanitizeSensitiveData: (patterns: Array<{
    path: string;
    replacement?: string;
}>) => LogEnricher;
/**
 * Add custom tags based on log content
 */
export declare const addDynamicTags: (taggers: Array<{
    condition: (entry: LogEntry) => boolean;
    tag: string;
}>) => LogEnricher;
/**
 * Chain multiple enrichers
 */
export declare const chainEnrichers: (...enrichers: LogEnricher[]) => LogEnricher;