import { SelectableCountries } from '../api/models/stamp-duty-rates.types';
import { SerializableStampDutyRate } from '../serializers';
/**
 * Data from dbapi comes as an array of objects sorted by id.
 *
 * ```
 * [
 *  {
 *    "id": 20,
 *    "country_name": "Scotland",
 *    ...
 *    ...
 *    ...
 *    "tax_type": "base",
 *    ...
 *  },
 *  {
 *    "id": 21,
 *    "country_name": "Wales",
 *    ...
 *    ...
 *    ...
 *    "tax_type": "base",
 *    ...
 *  },
 * ```
 *
 * This function helps to organise the data by grouping said objects
 * under the key passed as an argument (country name or tax type in this case).
 * Then useStampDutyCalculator can use only the type of data
 * required for the current calculation under the circunstances and location selected.
 *
 * ```
 * rates: {
 *  Scotland: {
 *    {
 *     "id": 20,
 *      "country_name": "Scotland",
 *      ...
 *      ...
 *      ...
 *      "tax_type": "base",
 *      ...
 *    },
 *    ...
 *  },
 *  Wales: {
 *    {
 *     "id": 21,
 *      "country_name": "Wales",
 *      ...
 *      ...
 *      ...
 *      "tax_type": "base",
 *      ...
 *    },
 *    ...
 *  },
 * ```
 *
 * or
 * ```
 * rates: {
 *  base: {
 *    {
 *     "id": 20,
 *      "country_name": "Scotland",
 *      ...
 *      ...
 *      ...
 *      "tax_type": "base",
 *      ...
 *    },
 *    ...
 *  },
 *  first_time_buyer: {
 *    {
 *     "id": 27,
 *      "country_name": "Scotland",
 *      ...
 *      ...
 *      ...
 *      "tax_type": "first_time_buyer",
 *      ...
 *    },
 *    ...
 *  },
 * ```
 */
export default function groupedByKey(rates: SerializableStampDutyRate[], key: keyof SerializableStampDutyRate): any;
export declare const groupByCountryAndTaxType: (arr: SerializableStampDutyRate[]) => {};
export declare const sortByRanges: (arr: SerializableStampDutyRate[]) => SerializableStampDutyRate[];
/**
 * Results come sorted by ID, we need them sorted by asc values
 * for minimum_property_price for each rate type
 */
export declare const arrangeDataByRateTypeSortedAndCountry: (data: any, country: SelectableCountries) => any;
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