export interface CachedResult {
    statusCode: number;
    responseText: string;
    nextPage: string | null;
    contentType: string | null;
    statusText: string;
}
export interface CacheKey {
    url: string;
    config?: RequestInit;
}
export type ToCacheFn = (key: CacheKey, result: CachedResult) => Promise<void>;
export type FromCacheFn = (key: CacheKey) => Promise<CachedResult | undefined>;
export type Cache = {
    write: ToCacheFn;
    read: FromCacheFn;
    cacheId: string | undefined;
};
export declare function fileCache({ cacheDir, compression }: {
    cacheDir: string;
    compression: "gz" | undefined;
}): Cache;
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