import type { ArkmeBackgroundSoundPreference } from '../types.js';
import { BackgroundSoundMembershipService } from './background-sound-membership-service.js';
import { ServiceRuntime } from './service.js';
/** Account-scoped server owner. Client caches remain reversible projections, never the source of truth. */
export declare class BackgroundSoundPreferenceService {
    private readonly runtime;
    private readonly membership;
    constructor(runtime: ServiceRuntime, membership?: BackgroundSoundMembershipService);
    preference(signal?: AbortSignal): Promise<ArkmeBackgroundSoundPreference>;
    update(enabled: boolean, signal?: AbortSignal, expectedUserId?: number): Promise<ArkmeBackgroundSoundPreference>;
    private eligibility;
    private assertAccount;
}
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