import { z } from 'zod';
import type { MaskOptions, Paths } from '../utils/types';
/**
 * Zod schema preprocessor / transformer that masks sensitive fields in an object schema.
 *
 * @param schema - The Zod schema representing the object to mask.
 * @param maskSchema - Configuration mapping fields/dot paths to MaskOptions.
 */
export declare function zodMask<T extends z.ZodTypeAny>(schema: T, maskSchema: Partial<Record<Paths<z.output<T>> & string, MaskOptions>>): z.ZodEffects<T, z.output<T>, z.input<T>>;
/**
 * Pre-configured Zod string field schema that automatically masks input strings.
 * Can be made optional or nullable using .optional() / .nullable().
 *
 * @param options - Masking options.
 */
export declare function zodMaskField(options?: MaskOptions): z.ZodEffects<z.ZodString, string, string>;
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