/**
 * Logging Module
 *
 * Structured logging with RFC 5424 severity levels.
 * All logs go to stderr (stdout is reserved for MCP protocol).
 *
 * SECURITY: Never log sensitive data (tokens, passwords, PII).
 */
declare class Logger {
    private name;
    constructor(name: string);
    /**
     * Check if a log level should be output based on current config
     */
    private shouldLog;
    /**
     * Format and output a log entry
     */
    private log;
    debug(message: string, data?: Record<string, unknown>): void;
    info(message: string, data?: Record<string, unknown>): void;
    notice(message: string, data?: Record<string, unknown>): void;
    warning(message: string, data?: Record<string, unknown>): void;
    error(message: string, data?: Record<string, unknown>): void;
    critical(message: string, data?: Record<string, unknown>): void;
}
/**
 * Create a logger instance for a specific component
 *
 * @param name - Component name (e.g., "telegram-api", "tools.updates")
 * @returns Logger instance
 */
export declare function createLogger(name: string): Logger;
export declare const logger: Logger;
/**
 * Generate a unique request ID for correlation
 */
export declare function generateRequestId(): string;
export {};
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