import type { CompletionRequest } from '../types/messages.js';
import type { PIIConfig, SecurityFinding } from '../types/security.js';
/** Finds and masks personal data such as emails, phone numbers, and card numbers. */
export declare class PIIDetector {
    /** Finds personal data in a request's messages. */
    detect(request: CompletionRequest, config?: PIIConfig): SecurityFinding[];
    /** Returns the request with personal data masked, or removed when the action is `remove`. */
    mask(request: CompletionRequest, config?: PIIConfig): CompletionRequest;
    private maskText;
    private extractText;
}