/**
 * @license
 * Copyright 2017 Google Inc.
 *
 * 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 * as firestore from '@firebase/firestore-types';
import { FieldPath as InternalFieldPath } from '../model/path';
/**
 * A FieldPath refers to a field in a document. The path may consist of a single
 * field name (referring to a top-level field in the document), or a list of
 * field names (referring to a nested field in the document).
 */
export declare class FieldPath implements firestore.FieldPath {
    /** Internal representation of a Firestore field path. */
    _internalPath: InternalFieldPath;
    /**
     * Creates a FieldPath from the provided field names. If more than one field
     * name is provided, the path will point to a nested field in a document.
     *
     * @param fieldNames A list of field names.
     */
    constructor(...fieldNames: string[]);
    /**
     * Internal Note: The backend doesn't technically support querying by
     * document ID. Instead it queries by the entire document name (full path
     * included), but in the cases we currently support documentId(), the net
     * effect is the same.
     */
    private static readonly _DOCUMENT_ID;
    static documentId(): FieldPath;
    isEqual(other: firestore.FieldPath): boolean;
}
/**
 * Parses a field path string into a FieldPath, treating dots as separators.
 */
export declare function fromDotSeparatedString(path: string): FieldPath;