declare const LEVELS: {
    readonly debug: 10;
    readonly info: 20;
    readonly warn: 30;
    readonly error: 40;
    readonly silent: 100;
};
export type LogLevel = keyof typeof LEVELS;
type LogValue = string | number | boolean | null | undefined;
export declare function redactLogText(value: string): string;
export declare function log(level: Exclude<LogLevel, "silent">, subsystem: string, event: string, fields?: Record<string, LogValue>, error?: unknown): void;
export declare const logger: {
    debug: (subsystem: string, event: string, fields?: Record<string, LogValue>) => void;
    info: (subsystem: string, event: string, fields?: Record<string, LogValue>) => void;
    warn: (subsystem: string, event: string, fields?: Record<string, LogValue>, error?: unknown) => void;
    error: (subsystem: string, event: string, fields?: Record<string, LogValue>, error?: unknown) => void;
};
export {};
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