interface LogOptions {
    maxFileSize?: number;
    maxFiles?: number;
    pretty?: boolean;
    rotateOnLimit?: boolean;
    timestamp?: boolean;
    format?: "json" | "jsonsl";
}
export declare class FileLogger {
    private readonly baseFilePath;
    private readonly options;
    private currentFile;
    private writeStream;
    private currentSize;
    private isRotating;
    private readonly logName;
    constructor(baseFilePath: string, options?: LogOptions, logName?: string);
    private getCurrentFilePath;
    private initStream;
    private rotateFiles;
    private formatLogEntry;
    write(entries: any, level?: "info" | "warn" | "error" | "debug"): Promise<void>;
    info(entries: any): Promise<void>;
    warn(entries: any): Promise<void>;
    error(entries: any): Promise<void>;
    debug(entries: any): Promise<void>;
}
/**
 * Creates or retrieves a logger instance
 * @param fileName Base file name for the logs
 * @param options Logger options
 * @param loggerName Unique name for this logger instance
 * @returns FileLogger instance
 */
export declare function createFileLogger(fileName: string, options?: LogOptions, loggerName?: string): FileLogger;
/**
 * Legacy function to maintain backward compatibility
 */
export declare function logFile(fileName: string, newValues: any, options?: LogOptions): Promise<void>;
export {};