import { HasTag, SomeSpec, Spec, SpecKind, SpecSuccess, SpectypesError } from './types.js';
/**
 * Creates a spec to validate a value with recursive type.
 * Doesn't support data that recursively references itself.
 *
 * @param spec Function that returns a spec
 */
export declare const lazy: <ItemSpec extends Spec = SomeSpec>(spec: HasTag<ItemSpec, 'filter'> extends true ? SpectypesError<'filter', 'lazy'> : HasTag<ItemSpec, 'lazy'> extends true ? SpectypesError<'lazy', 'lazy'> : () => ItemSpec) => Spec<['lazy'], SpecKind<ItemSpec>, SpecSuccess<ItemSpec>>;
declare type LazySpec<Item, Kind extends 'validator' | 'transformer'> = Spec<['lazy'], Kind, Item>;
export declare type LazyValidatorSpec<Item> = LazySpec<Item, 'validator'>;
export declare type LazyTransformerSpec<Item> = LazySpec<Item, 'transformer'>;
export {};