import type { Session } from 'koishi';
export type UserSpeakerCache = Map<string, Promise<ResolvedUserSpeaker>>;
interface ResolvedUserSpeaker {
    speakerKey: string;
    speakerLabel: string;
}
export declare const resolveUserSpeaker: (session: Session, userId: string, cache?: UserSpeakerCache) => Promise<ResolvedUserSpeaker>;
export {};