import type { PickerOption, State, PickerProps } from './type';
export declare enum DataType {
    SINGLE = "single",
    CASCADE = "cascade",
    MULTIPLE = "multiple"
}
export declare const getDateType: (columnes: PickerProps['columns'], childrenKey: string) => DataType;
/**
 * 判断是否是多列
 * @param columnes
 * @returns
 */
export declare const isPlain: (columnes: PickerProps['columns']) => columnes is PickerOption<string>[];
export declare const flateColumns: (columns: PickerOption[][], values: State['values'], valueKey: string, childrenKey: string) => State;