export declare function isActiveMember(roomId: string, userId: string, appId: string): Promise<boolean>;
export declare function membershipState(roomId: string, userId: string, appId: string): Promise<"none" | "open" | "archived">;
export declare function sharesRoomWith(callerUserId: string, candidateUserIds: string[], appId: string): Promise<string[]>;
export declare function activeMembers(roomId: string, appId: string): Promise<string[]>;
