import type { IMediaQueryCondition } from './media-query-base';
/**
 * Const media condition implementation
 * @author Alexey Stsefanovich (ala'n)
 *
 * Ignores listeners always return the same result.
 * Have only two instances: {@link ALL} and {@link NOT_ALL}
 */
declare class MediaQueryConstCondition implements IMediaQueryCondition {
    private readonly _matches;
    constructor(_matches: boolean);
    get matches(): boolean;
    addEventListener(): void;
    removeEventListener(): void;
    dispatchEvent(): boolean;
    optimize(): IMediaQueryCondition;
    toString(): string;
    /** Compares const media condition with the passed query instance or string */
    eq(val: IMediaQueryCondition | string): boolean;
}
export declare const ALL: MediaQueryConstCondition;
export declare const NOT_ALL: MediaQueryConstCondition;
export {};