import { type FirestoreAccessorArrayUpdate } from '../../common/firestore/accessor/accessor';
import { type UpdateData } from '../../common/firestore/types';
/**
 * Converts a {@link FirestoreAccessorArrayUpdate} into Firestore `UpdateData` using the
 * client-side `arrayUnion()` and `arrayRemove()` FieldValue sentinels.
 *
 * Processes both `union` (add elements) and `remove` (delete elements) operations,
 * spreading array values as individual arguments since Firestore does not allow nested arrays.
 *
 * @param input - object with `union` and/or `remove` maps from field names to arrays of values
 * @returns Firestore `UpdateData` with `FieldValue.arrayUnion()`/`FieldValue.arrayRemove()` sentinels
 *
 * @example
 * ```ts
 * const updateData = firestoreClientArrayUpdateToUpdateData<MyModel>({
 *   union: { tags: ['newTag'] },
 *   remove: { tags: ['oldTag'] }
 * });
 * await updateDoc(docRef, updateData);
 * ```
 */
export declare function firestoreClientArrayUpdateToUpdateData<T extends object>(input: FirestoreAccessorArrayUpdate<T>): UpdateData<T>;