import type { PropertyValues } from 'lit';
import { type Breakpoints, type BreakpointsMergeType, type MergeBreakpointsOptions } from '../responsive/utils';
import { FlexBox } from './flex-box';
type ClassProps = {
    [P in keyof Breakpoints as `class${Uppercase<P>}`]: string | undefined;
};
export declare class FlexBoxResponsive extends FlexBox implements ClassProps, Required<Pick<MergeBreakpointsOptions, 'merge'>> {
    private readonly mq;
    private readonly classBreakpoints;
    private prevViewSize;
    private classes;
    merge: boolean | BreakpointsMergeType;
    classXXXXS: string | undefined;
    classXXXS: string | undefined;
    classXXS: string | undefined;
    classXS: string | undefined;
    classS: string | undefined;
    classM: string | undefined;
    classL: string | undefined;
    classXL: string | undefined;
    classXXL: string | undefined;
    classXXXL: string | undefined;
    classXXXXL: string | undefined;
    classXXXXXL: string | undefined;
    constructor();
    protected updated(changedProperties: PropertyValues<this>): void;
}
export {};