import { default as React } from 'react';
import { MenuTriggerProps, MenuTriggerState } from 'react-stately';
import { MultiSelectListProps, MultiSelectListState } from './useMultiSelectListState';
/** MultiSelect option selectors. */
export type MultiSelectSelectors<T> = {
    /** Gets the key for the option. */
    getOptionValue: (option: T) => string;
    /** Gets the text label for the option. */
    getOptionLabel: (option: T) => string;
    /** Renders the label for the option. If not present, `getOptionLabel` is used. */
    renderLabel?: (option: T) => React.ReactNode | undefined;
    /** Gets the children for the option (meant for section). */
    getGroupOptions?: (option: T) => T[] | undefined;
};
/** Props for the useMultiSelectState hook. */
export interface MultiSelectStateProps<T> extends Omit<MultiSelectListProps<T>, 'children' | 'onSelectionChange'>, MultiSelectSelectors<T>, MenuTriggerProps {
    /** Handler that is called when the selection changes. */
    onSelectionChange?: (selection: string[]) => void;
}
export interface MultiSelectState<T> extends MultiSelectListState<T>, MenuTriggerState {
    /** Whether the select is currently focused. */
    isFilterFocused: boolean;
    /** Sets whether the select is focused. */
    setFilterFocused(isFocused: boolean): void;
}
export declare function useMultiSelectState<T extends object>({ getOptionValue, getOptionLabel, renderLabel, getGroupOptions, ...props }: MultiSelectStateProps<T>): MultiSelectState<T>;
export declare function extractAllItemKeys<T extends object>(items: T[], getValue: MultiSelectSelectors<T>['getOptionValue'], getGroupOptions: MultiSelectSelectors<T>['getGroupOptions']): string[];