import { ArrowTableInterface, ApacheVectorInterface, RowData, Field } from '@kepler.gl/types';
export declare const ACCEPTED_ANALYZER_TYPES: any[];
/**
 * Getting sample data for analyzing field type.
 */
export declare function getSampleForTypeAnalyze({ fields, rows, sampleCount }: {
    fields: string[];
    rows: unknown[][] | RowData;
    sampleCount?: number;
}): RowData;
/**
 * Getting sample data for analyzing field type for Arrow tables.
 * @param table Arrow table or an array of vectors.
 * @param fields Field names.
 * @param sampleCount Number of sample rows to get.
 * @returns Sample rows.
 */
export declare function getSampleForTypeAnalyzeArrow(table: ArrowTableInterface | ApacheVectorInterface[], fields: string[], sampleCount?: number): any[];
/**
 * Convert type-analyzer output to kepler.gl field types
 *
 * @param aType
 * @returns corresponding type in `ALL_FIELD_TYPES`
 */
export declare function analyzerTypeToFieldType(aType: string): string;
/**
 * Analyze field types from data in `string` format, e.g. uploaded csv.
 * Assign `type`, `fieldIdx` and `format` (timestamp only) to each field
 *
 * @param data array of row object
 * @param fieldOrder array of field names as string
 * @returns formatted fields
 * @public
 * @example
 *
 * import {getFieldsFromData} from '@kepler.gl/common-utils';
 * const data = [{
 *   time: '2016-09-17 00:09:55',
 *   value: '4',
 *   surge: '1.2',
 *   isTrip: 'true',
 *   zeroOnes: '0'
 * }, {
 *   time: '2016-09-17 00:30:08',
 *   value: '3',
 *   surge: null,
 *   isTrip: 'false',
 *   zeroOnes: '1'
 * }, {
 *   time: null,
 *   value: '2',
 *   surge: '1.3',
 *   isTrip: null,
 *   zeroOnes: '1'
 * }];
 *
 * const fieldOrder = ['time', 'value', 'surge', 'isTrip', 'zeroOnes'];
 * const fields = getFieldsFromData(data, fieldOrder);
 * // fields = [
 * // {name: 'time', format: 'YYYY-M-D H:m:s', fieldIdx: 1, type: 'timestamp'},
 * // {name: 'value', format: '', fieldIdx: 4, type: 'integer'},
 * // {name: 'surge', format: '', fieldIdx: 5, type: 'real'},
 * // {name: 'isTrip', format: '', fieldIdx: 6, type: 'boolean'},
 * // {name: 'zeroOnes', format: '', fieldIdx: 7, type: 'integer'}];
 *
 */
export declare function getFieldsFromData(data: RowData, fieldOrder: string[]): Field[];
/**
 * pass in an array of field names, rename duplicated one
 * and return a map from old field index to new name
 *
 * @param fieldOrder
 * @returns new field name by index
 */
export declare function renameDuplicateFields(fieldOrder: string[]): {
    allNames: string[];
    fieldByIndex: string[];
};