export type LogLevel = "debug" | "info" | "warn" | "error" | "silent";
export interface LogEntry {
    level: LogLevel;
    message: string;
    timestamp: string;
    context?: string;
    data?: unknown;
}
export interface LoggerConfig {
    level?: LogLevel;
    prefix?: string;
    handler?: (entry: LogEntry) => void;
}
declare class Logger {
    #private;
    configure(config: LoggerConfig): void;
    debug(message: string, data?: unknown, context?: string): void;
    info(message: string, data?: unknown, context?: string): void;
    warn(message: string, data?: unknown, context?: string): void;
    error(message: string, data?: unknown, context?: string): void;
    private log;
    private shouldLog;
    private sanitizeData;
    private redactSensitive;
    private output;
}
export declare const logger: Logger;
export {};
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