/**
 * Logger Utility
 * Production-safe logging that respects __DEV__ flag
 * Logs are suppressed in production builds to reduce bundle size and improve performance
 */
interface LoggerConfig {
    enableInProduction?: boolean;
    errorTrackingService?: (error: unknown, context?: Record<string, unknown>) => void;
}
declare class Logger {
    private isDev;
    private config;
    constructor(config?: LoggerConfig);
    /**
     * Debug logging - only in development
     * Use for detailed debugging information
     */
    debug(...args: unknown[]): void;
    /**
     * Info logging - only in development
     * Use for general information
     */
    info(...args: unknown[]): void;
    /**
     * Warning logging - always shown
     * Use for recoverable issues
     */
    warn(...args: unknown[]): void;
    /**
     * Error logging - always shown
     * Use for errors and exceptions
     * In production, sends to error tracking service if configured
     */
    error(...args: unknown[]): void;
    /**
     * Group logging - only in development
     * Use for grouping related logs
     */
    group(label: string): void;
    /**
     * End group logging - only in development
     */
    groupEnd(): void;
    /**
     * Table logging - only in development
     * Use for displaying tabular data
     */
    table(data: unknown): void;
    /**
     * Time measurement - only in development
     * Use for performance measurements
     */
    time(label: string): void;
    /**
     * End time measurement - only in development
     */
    timeEnd(label: string): void;
    /**
     * Assert logging - only in development
     * Use for assertions
     */
    assert(condition: boolean, ...args: unknown[]): void;
    /**
     * Configure logger
     */
    configure(config: LoggerConfig): void;
}
export declare const logger: Logger;
export { Logger };
export type { LoggerConfig };