export declare class MediaQueryManager extends EventTarget {
    private _watchers;
    private _active;
    protected readonly _breaks: Array<number>;
    protected readonly _baseFontSize: number;
    private _handler;
    init(): void;
    constructor(breaks: Array<number>, { baseFontSize, delayInit }?: {
        baseFontSize?: number | undefined;
        delayInit?: boolean | undefined;
    });
    updateBaseFont(): void;
    private _changed;
    destroy(): void;
    get breaks(): Array<number>;
    get active(): number;
}
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