import { StatusKey } from '../i18n/types';
import { FieldDescriptor } from '../types';
import { QuestionnaireStateErrorMessagesMap } from './QuestionnaireStep';
import { DescriptorState } from './types';
/**
 * Returns the error keys for a single descriptor.
 * Used by the hydrator and by adaptive-skip predicates that only
 * care about one field's validity.
 *
 * Iterates the registry directly (not `Object.keys(fields)`) so that
 * non-state-bearing descriptors with `getErrors` — e.g. text-type RTT
 * mismatch banners — are evaluated alongside editable fields.
 *
 * Visibility-gating happens at the call site (the hydrator gates errors
 * via `getEffectiveErrors`); this function emits errors regardless of
 * visibility, matching the legacy rule semantics.
 */
export declare const getFieldErrorKeys: (state: DescriptorState, descriptor: FieldDescriptor) => StatusKey[] | undefined;
export declare const getInvalidFields: (state: DescriptorState) => QuestionnaireStateErrorMessagesMap;