import { z } from "zod/v4";
import type { JSONSchema } from "zod/v4/core";
import { RefinementHandler } from "../../core/types";
/**
 * Handles the `propertyNames` keyword (JSON Schema draft 2020-12).
 *
 * Every property name of an object instance must validate against the
 * `propertyNames` subschema. Since property names are always strings,
 * the subschema effectively constrains keys with string keywords such
 * as `pattern`, `maxLength`, `const`, or `enum`. Boolean subschemas
 * follow the usual semantics: `true` accepts every key and `false`
 * rejects objects with any properties. Non-object instances are
 * ignored, per the specification.
 */
export declare class PropertyNamesHandler implements RefinementHandler {
    apply(zodSchema: z.ZodTypeAny, schema: JSONSchema.BaseSchema): z.ZodTypeAny;
}