export declare const REDACTED = "[REDACTED]";
export declare const DEFAULT_SECRET_KEY_RE: RegExp;
export interface RedactOptions {
    maskKeys?: string[];
    keyPattern?: RegExp;
    maskValues?: boolean;
    maxDepth?: number;
    patterns?: RegExp[];
    replacement?: string;
}
export declare function isSecretKey(key: string, options?: RedactOptions): boolean;
export interface RedactStringOptions {
    patterns?: RegExp[];
    replacement?: string;
}
export declare function redactString(value: string, options?: RedactStringOptions): string;
export declare function redact<T>(value: T, options?: RedactOptions): T;