type LogLevel = 'debug' | 'info' | 'warn' | 'error';
export interface Logger {
    debug(message: string, ...args: unknown[]): void;
    info(message: string, ...args: unknown[]): void;
    warn(message: string, ...args: unknown[]): void;
    error(message: string, ...args: unknown[]): void;
}
/**
 * Create a tagged logger for a specific module.
 * All output goes to console with structured prefix.
 */
export declare function createLogger(tag: string): Logger;
export declare function setLogLevel(level: LogLevel): void;
export {};
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