/**
 * @license
 * Copyright 2022 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
import { Document } from '../model/document';
import { FieldMask } from '../model/field_mask';
/**
 * Represents a local view (overlay) of a document, and the fields that are
 * locally mutated.
 */
export declare class OverlayedDocument {
    readonly overlayedDocument: Document;
    /**
     * The fields that are locally mutated by patch mutations.
     *
     * If the overlayed	document is from set or delete mutations, this is `null`.
     * If there is no overlay (mutation) for the document, this is an empty `FieldMask`.
     */
    readonly mutatedFields: FieldMask | null;
    constructor(overlayedDocument: Document, 
    /**
     * The fields that are locally mutated by patch mutations.
     *
     * If the overlayed	document is from set or delete mutations, this is `null`.
     * If there is no overlay (mutation) for the document, this is an empty `FieldMask`.
     */
    mutatedFields: FieldMask | null);
}