import type { Attribute, AttributePayload, EngagementMessage, EngagementServiceConfig, Segment } from './types';
export declare class EngagementService {
    constructor(config: EngagementServiceConfig);
    private appId;
    private readonly networkClient;
    private readonly events;
    private profileId?;
    private profileData?;
    private messages;
    private readonly environment?;
    private messageCache;
    private readonly cacheTTL;
    setProfileAttributes(attributes: Attribute[]): Promise<boolean>;
    setProfileAttribute(key: string, value: string): Promise<boolean>;
    getProfile(accountId?: string, forceProfileSync?: boolean, appId?: string): Promise<string>;
    getSegments(attribute?: string): Promise<Segment[]>;
    setPushToken(pushToken: string): Promise<any>;
    setAppId(id: string): void;
    /**
     * Get inbox messages for the current user
     *
     * @return inbox messages
     */
    getMessages(): Promise<EngagementMessage[]>;
    getInboxMessages(attributes?: AttributePayload): Promise<EngagementMessage[]>;
    /**
     * Accepts array of inbox messages
     * Fetches sort order array (stored in app settings)
     *
     * @param messages inbox messages to sort
     * @return sorted inbox messages
     */
    sortInbox(messages: EngagementMessage[]): Promise<EngagementMessage[]>;
    getInboxBySegment(segmentId: number | string, segmentOnly?: boolean): Promise<EngagementMessage[]>;
}