import { Breakpoint } from '../../metrics/metrics';
declare class BreakpointStore {
    private readonly mqls?;
    private subscribers;
    private clientBreakpoint?;
    private serverBreakpoint?;
    private testBreakpoint?;
    setSsrBreakpoint(breakpoint: Breakpoint): void;
    setTestBreakpoint(breakpoint: Breakpoint): void;
    resetConfiguration(): void;
    constructor();
    readonly subscribe: (callback: () => void) => () => boolean;
    readonly getSnapshot: () => Breakpoint;
    readonly getServerSnapshot: () => Breakpoint;
    private readonly update;
    private readonly listener;
    private notifySubscribers;
}
export declare const breakpointStore: BreakpointStore;
export type { BreakpointStore };