export declare const groupBy: <T, K extends string, V>(array: T[], getKey: (item: T) => K, getValue: (item: T) => V) => Record<K, V>;
export declare const diff: <T>(array: T[], otherArray: T[]) => T[];
export declare const partition: <T>(array: T[], condition: (v: T) => boolean) => [T[], T[]];
export declare const downloadAllGraphqlPages: <T>(params: {
    /** Query needs to accept $offset: Int and $limit: Int params */
    query: string;
    variables: Record<string, string[] | string | number>;
    url: string | URL;
    mapResponse: (res: unknown) => T[];
}) => Promise<T[]>;