import type { FormAtom } from "./formAtom";
/**
 * Duck-type check for a FormAtom (works across bundle boundaries).
 */
export declare function isFormAtom(value: unknown): value is FormAtom<unknown>;
/**
 * Returns `true` when every `FormAtom` inside a nested molecule is valid.
 * Plain atoms and non-atom data are ignored.
 *
 * ≡ `molecule.every(mol, (a) => !isFormAtom(a) || a.isValid)`
 *
 * @example
 * ```ts
 * const form = {
 *   name: formAtom("", () => [isRequired]),
 *   address: { street: formAtom("", () => [isRequired]) },
 * };
 *
 * if (isFormValid(form)) { … }
 * ```
 */
export declare function isFormValid(mol: unknown): boolean;
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