Interface PollingWave

interface PollingWave {
    provider: PollProviderKey;
    sourceUrl: string;
    fetchedAt: string;
    status: "ok" | "unavailable";
    title?: string;
    publishedAt?: string;
    fieldworkMonth?: string;
    sampleSize?: number;
    parties: Partial<Record<PartyCode, number>>;
    notes?: string;
}