import { PickerColumnItem, PickerValue } from './wheel';
import { PickerColumn } from "./colorful-datePicker";
export declare type PickerValueExtend = {
    columns: PickerColumnItem[][];
    items: (PickerColumnItem | null)[];
};
export declare type PickerViewProps = {
    columns: PickerColumn[] | ((value: PickerValue[]) => PickerColumn[]);
    value?: PickerValue[];
    defaultValue?: PickerValue[];
    mouseWheel?: boolean;
    loading?: boolean;
    onChange?: (value: PickerValue[], extend: PickerValueExtend) => void;
};
export declare function generateColumnsExtend(rawColumns: PickerViewProps['columns'], val: PickerValue[]): PickerValueExtend;
export declare function useColumnsExtend(rawColumns: PickerViewProps['columns'], value: PickerValue[]): PickerValueExtend;
export declare function withCache<T>(generate: () => T): () => T;