/**
 *
 * Copyright 2020-2026 Splunk 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
 *
 * https://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 { UserTrackingMode } from '../../types';
import { StorageManager } from '../storage';
/**
 * Manages anonymous user identification across sessions.
 * Generates and persists a unique anonymous user ID using the configured storage mechanism.
 */
export declare class UserManager {
    userTrackingMode: UserTrackingMode;
    private readonly storageManager;
    private anonymousId;
    constructor(userTrackingMode: UserTrackingMode, storageManager: StorageManager, anonymousId?: string);
    static isUserTrackingMode: (value: unknown) => value is UserTrackingMode;
    forgetAnonymousId(): void;
    getAnonymousIdIfEnabled(): string | undefined;
    private static generateAnonymousId;
    private getAnonymousIdFromStorage;
    private persistAnonymousId;
}