/**
 * Set validation core module
 * Provides validation for `Set` instances. The validator can optionally
 * delegate to a per-element validator, mirroring how `arrayOf()` validates
 * each element of an array.
 *
 * The function is named `setOf` to avoid conflicting with the top-level
 * `Object` module's `set` runtime helper, and mirrors `arrayOf()` for
 * consistency.
 */
import { type StandardSchemaV1 } from "../../Validate/standardSchema";
import type { ValidateCoreReturnType, ValidateType } from "../../Validate/type";
export type SetExtractValidatedType<V> = V extends (value: never) => {
    type: infer T;
} ? ValidateType<T> : never;
/**
 * Creates a Set validator. When a per-element validator is supplied, every
 * element of the set must satisfy it; iteration short-circuits at the first
 * failure and surfaces the failing message.
 * @template IV - Validator for set elements
 * @param {IV} [itemValidator] - Validator applied to every element
 * @param {string} [message] - Custom error message for type validation
 * @returns {Function} - Validator function for Set instances
 */
export declare const setOf: <IV extends (value: any) => ValidateCoreReturnType<unknown> = (value: unknown) => ValidateCoreReturnType<unknown>, T = SetExtractValidatedType<IV>>(itemValidator?: IV, message?: string) => ((value: Set<T>) => ValidateCoreReturnType<Set<T>>) & StandardSchemaV1<Set<T>, Set<T>>;