export declare const dropdownDefaultProps: {
    itemToString(item: unknown): string;
    itemToKey(item: unknown): unknown;
    isItemDisabled(_item: unknown): boolean;
    stateReducer: <S, A>(_state: S, actionAndChanges: A & {
        props: any;
    } & {
        changes: Partial<S>;
    }) => Partial<S>;
    scrollIntoView: any;
    environment: (Window & typeof globalThis) | undefined;
};