/**
 * Logging utility for the @plust/datasleuth package
 */
/**
 * Available log levels in order of increasing severity
 */
export type LogLevel = 'debug' | 'info' | 'warn' | 'error';
/**
 * Configuration options for the logger
 */
export interface LoggerOptions {
    /** Minimum level to log (defaults to 'info') */
    level?: LogLevel;
    /** Include timestamp in log messages */
    includeTimestamp?: boolean;
    /** Include current step name in log messages */
    includeStepName?: boolean;
    /** Whether to log to the console */
    logToConsole?: boolean;
    /** Additional custom loggers to send log messages to */
    customLoggers?: Array<(level: LogLevel, message: string, ...args: unknown[]) => void>;
}
/**
 * Logger class that handles log message formatting and output
 */
export declare class Logger {
    private level;
    private options;
    private currentStep?;
    /**
     * Creates a new logger instance
     */
    constructor(options?: LoggerOptions);
    /**
     * Set the current step name for step-specific logging
     */
    setCurrentStep(stepName?: string): void;
    /**
     * Get the current step name
     */
    getCurrentStep(): string | undefined;
    /**
     * Set the minimum log level
     */
    setLogLevel(level: LogLevel): void;
    /**
     * Log a debug message
     */
    debug(message: string, ...args: unknown[]): void;
    /**
     * Log an info message
     */
    info(message: string, ...args: unknown[]): void;
    /**
     * Log a warning message
     */
    warn(message: string, ...args: unknown[]): void;
    /**
     * Log an error message
     */
    error(message: string, ...args: unknown[]): void;
    /**
     * Log a message with the specified level
     */
    private log;
    /**
     * Check if the given log level should be logged based on the current minimum level
     */
    private shouldLog;
    /**
     * Format the log message with optional timestamp and step name
     */
    private formatMessage;
    /**
     * Get the appropriate console method for the log level
     */
    private getConsoleMethod;
}
/**
 * Global logger instance
 */
export declare const logger: Logger;
/**
 * Creates a step-specific logger that automatically includes the step name
 */
export declare function createStepLogger(stepName: string): Pick<Logger, 'debug' | 'info' | 'warn' | 'error'>;