import type { z } from 'zod';
type WithDefaultResult<T extends z.ZodType> = z.ZodPrefault<T>;
export type WithDefaultType = <T extends z.ZodType>(schema: T, defaultValue: z.input<T>) => WithDefaultResult<T>;
/**
 * Creates a schema decorator that applies a default value.
 *
 * Uses `prefault` to ensure defaults are populated during Zod parse, and
 * registers the default value in the registry so `cleanDefaultValues()` can
 * strip matching values during serialization.
 *
 * Can be used standalone with `.apply()`:
 * ```typescript
 * z.boolean().apply(withDefault(false))
 * ```
 *
 * @param defaultValue - The default value to apply
 * @returns A function that decorates a schema with the default value
 */
export declare function withDefault(defaultValue: unknown): <T extends z.ZodType>(schema: T) => WithDefaultResult<T>;
/**
 * Extends the parser context with default value handling functionality.
 *
 * @returns An object containing the withDefault method
 */
export declare function extendParserContextWithDefaults(): {
    withDefault: WithDefaultType;
};
export {};
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