import { type NormalizedQuotaSnapshot, type ProviderQuotaAdapter, type ProviderQuotaFetchInput } from './ProviderQuotaAdapter';
export declare class UnsupportedQuotaAdapter implements ProviderQuotaAdapter {
    readonly provider = "metadata";
    readonly capability: {
        readonly protocol: "unsupported-quota";
    };
    fetch(input: ProviderQuotaFetchInput): Promise<NormalizedQuotaSnapshot>;
}