import type { GetOptionValue } from './types';
export declare function isEmptyValue<Value>(value: Value): boolean;
export declare function getCurrentOption<Option, Value>(options: Option[], value: Value, getValue: GetOptionValue<Option, Value>): Option | null;
declare type GroupKey = number | string;
interface UpdatePayload<Option> {
    key: 'ArrowDown' | 'ArrowUp';
    index: number;
    groupIndex: number;
    optionsKeyByGroup: Record<GroupKey, Option[]>;
}
export declare function updateHoverIndex<Option>(data: UpdatePayload<Option>): {
    index: number;
    groupIndex: number;
};
export {};