export interface PrivacyConfig {
    strip_tags: boolean;
    redact_patterns: string[];
    disabled_detectors?: string[];
}
export interface PrivacyResult {
    cleaned: string;
    redactions: number;
    had_private_tags: boolean;
}
export interface BuiltInPattern {
    name: string;
    pattern: RegExp;
    replacement: string;
}
export declare class PrivacyEngine {
    private config;
    private compiledPatterns;
    private activeBuiltIns;
    constructor(config: PrivacyConfig);
    private static resolveBuiltIns;
    private static compilePattern;
    /**
     * Sanitize content by running all privacy detectors.
     * Convenience wrapper returning a simpler shape for callers that
     * don't need the full PrivacyResult.
     */
    sanitize(content: string): {
        sanitized: string;
        redactions: number;
    };
    process(content: string): PrivacyResult;
    updateConfig(config: Partial<PrivacyConfig>): void;
    /** Expose active built-in pattern names for introspection / testing */
    getActiveDetectors(): string[];
}
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