import SignedMessage from "./SignedMessage";
interface MemberInfo {
    message: SignedMessage;
    firstSeen: Date;
    lastSeen: Date;
}
export default class MemberSet {
    members: {
        [publicKey: string]: MemberInfo;
    };
    constructor();
    handleTick(): void;
    handleLeave(publicKey: string): void;
    handleJoin(sm: SignedMessage): boolean;
    getJoinMessages(): SignedMessage[];
    getMembers(): string[];
}
export {};