export interface Logger {
    info(message: string, metadata?: unknown): void;
    error(message: string, metadata?: unknown): void;
    warn(message: string, metadata?: unknown): void;
    debug(message: string, metadata?: unknown): void;
    success(message: string, metadata?: unknown): void;
}
export declare class SimpleLogger implements Logger {
    private targetName?;
    private logLevel;
    private logStream?;
    constructor(targetName?: string, logLevel?: string, logFile?: string);
    private shouldLog;
    private formatMessage;
    private writeToFile;
    flush(): void;
    info(message: string, metadata?: unknown): void;
    error(message: string, metadata?: unknown): void;
    warn(message: string, metadata?: unknown): void;
    debug(message: string, metadata?: unknown): void;
    success(message: string, metadata?: unknown): void;
}
export declare function createLogger(logFile?: string, logLevel?: string, targetName?: string): Logger;
export declare class TargetLogger implements Logger {
    private logger;
    private targetName?;
    constructor(logger: Logger, targetName?: string);
    private formatMessage;
    info(message: string, metadata?: unknown): void;
    error(message: string, metadata?: unknown): void;
    warn(message: string, metadata?: unknown): void;
    debug(message: string, metadata?: unknown): void;
    success(message: string, metadata?: unknown): void;
}
export declare function createTargetLogger(baseLogger: Logger, targetName: string): Logger;
export declare function createConsoleLogger(): {
    info: (message: string) => void;
    error: (message: string) => void;
    warn: (message: string) => void;
    success: (message: string) => void;
};
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