import { Context, ContextFactoryOptions, ContextDefaultState } from './context';
import { kSerializeData } from '../../utils/constants';
export type FriendActivityContextType = 'friend_activity';
export type FriendActivityContextSubType = 'friend_online' | 'friend_offline' | 'friend_invisible';
export interface IFriendActivityContextPayload {
    user_id: number;
    date: number;
    extra: number;
    app_id: number;
}
export type FriendActivityContextOptions<S> = ContextFactoryOptions<[number, number, number, number, number], S>;
export declare class FriendActivityContext<S = ContextDefaultState> extends Context<IFriendActivityContextPayload, S, FriendActivityContextType, FriendActivityContextSubType> {
    constructor(options: FriendActivityContextOptions<S>);
    /**
     * Checks that the user is online
     */
    get isOnline(): boolean;
    /**
     * Checks that the user is online
     */
    get isOffline(): boolean;
    /**
     * Checks that the user is invisible
     */
    get isInvisible(): boolean;
    /**
     * Checks that the user has logged out of the network himself
     */
    get isSelfLeave(): boolean;
    /**
     * Checks that the user logged out a timeout
     */
    get isTimeoutLeave(): boolean;
    /**
     * Returns the friend id
     */
    get userId(): number | undefined;
    /**
     * Returns the identifier of the application from which the friend was online
     */
    get applicationId(): number;
    /**
     * Returns the date when this event was created
     */
    get eventAt(): number;
    /**
     * Returns the platform from which the user entered
     *
     * - `1` - m.vk.com or other unknown application
     * - `2` - iPhone
     * - `3` - iPad
     * - `4` - Android
     * - `5` - Windows Phone
     * - `6` - Windows
     * - `7` - vk.com or other unknown application
     */
    get platform(): number | undefined;
    /**
     * Returns the custom data
     */
    [kSerializeData](): object;
}