import type { TeamConversation, TeamOfficialMembership } from '../team-app-contract.js';
import { type TeamDirectoryPreferences } from './team-directory-preferences.js';
export interface OfficialMembershipSnapshot {
    state: 'pending' | 'ready' | 'unavailable';
    value?: TeamOfficialMembership;
}
export declare const subscribeOfficialTeamMembership: (listener: () => void) => () => void;
export declare const readOfficialTeamMembership: (key: string) => OfficialMembershipSnapshot;
export declare const refreshOfficialTeamMembership: (key: string) => Promise<void>;
/** This optional read must neither delay conversations nor clear known status on transient failure. */
export declare function startOfficialTeamMembership(key: string): () => void;
export declare function shouldShowOfficialContact(membership: OfficialMembershipSnapshot, conversations: readonly TeamConversation[], preferences: TeamDirectoryPreferences): boolean;
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