/**
 * Form root's `errors` map — name-keyed channel for server/cross-field/async errors the browser cannot derive.
 */
export type FormErrors = Record<string, string | string[]>;
/** Coerce field's entry into message list, drop blanks. */
export declare function normalizeFormErrors(entry: string | string[] | undefined): string[];
/** Join field's server errors into the text of one catch-all message. */
export declare function formErrorText(messages: readonly string[]): string;