import type { PartialDeep } from 'type-fest';
import type { z } from 'zod';
/**
 * Merges two values according to the given Zod schema and any registered merge rules.
 *
 * Default behaviors:
 * - Leaf scalar → desired replaces current
 * - Object → merge fields recursively; `undefined` desired fields keep current value (partial patch)
 * - Array whose element has `withEnt` annotation → merge by entity name (add-only, order-preserving)
 * - Any other array → full replace with desired
 * - Wrapper (optional/nullable/default) → descend to inner schema
 * - Discriminated union → find matching branch by discriminator, merge
 *
 * Explicit rules from `withMergeRule` override the defaults:
 * - `replace` → always return desired value
 * - `by-key` → merge array by a custom key function (add-only)
 */
export declare function mergeDataWithSchema<T extends z.ZodType>(schema: T, current: z.input<T>, desired: PartialDeep<z.input<T>, {
    recurseIntoArrays: true;
}>): z.input<T>;
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