export interface PresenceStoreInterface {
    join(topic: string, socketId: string, data: Record<string, unknown>): void;
    leave(topic: string, socketId: string): Record<string, unknown> | undefined;
    members(topic: string): Record<string, unknown>[];
    count(topic: string): number;
    clear(topic: string): void;
}
export declare class PresenceStore implements PresenceStoreInterface {
    private store;
    join(topic: string, socketId: string, data: Record<string, unknown>): void;
    leave(topic: string, socketId: string): Record<string, unknown> | undefined;
    members(topic: string): Record<string, unknown>[];
    count(topic: string): number;
    clear(topic: string): void;
}