import { Ref } from 'vue';
export declare const useGroupedOptions: (props: any) => {
    isGroup: (option: any) => boolean;
    sortOutGroups: (options: any) => any;
    flattenAndMarkGroupOptions: (options: any) => any;
    selectAllWithGroups: (filteredOptions: Ref<unknown[]>, selectedOptionRef: Ref<unknown[]>) => void;
    isIndeterminateGrouped: (filteredOptions: any, selectedOptionRef: Ref<unknown[]>) => boolean;
    allSelectedGrouped: (filteredOptions: any, selectedOptionRef: Ref<unknown[]>) => boolean;
    areAllPreviousSelected: (flatOptions: Ref<unknown[]>, selectedOptionPrevious: Ref<unknown[]>) => boolean;
    groupedChildOptionsLength: (options: any) => number;
};