import { AbstractValidatableDocument } from '../../contracts/abstract-validatable-document.js';
import { ReasonCode } from '../../contracts/reason-code.js';
import { type DocumentMeta } from '../../contracts/validation-result.js';
/**
 * Validates PIX keys (BACEN DICT), a composite of the five key types:
 * CPF, CNPJ, e-mail, phone (E.164) and the random key (EVP, a UUID).
 *
 * Validation is format + checksum only (CPF/CNPJ reuse their validators); it
 * does NOT check whether the key is actually registered in the DICT — that is
 * an online lookup. Detected type is exposed as `meta.keyType`.
 */
export declare class PixValidation extends AbstractValidatableDocument {
    protected documentName(): string;
    /** PIX keys are not digit-only; keep the trimmed value verbatim. */
    protected sanitize(value: string): string;
    protected doValidate(): ReasonCode | null;
    /**
     * Classifies the key by shape. Order matters: '+' and '@' are unambiguous;
     * a UUID is checked before digit-only so it never falls through; then the
     * digit-only CPF (11) / CNPJ (14) lengths.
     */
    private static detectType;
    /** The detected key type (null when the key is invalid — not reached on the valid path). */
    protected extractMeta(normalized: string): DocumentMeta;
}