import type { SettingsStorage } from "./platform/web/dom/SettingsStorage";
export declare enum FeatureFlag {
    Calls = 1,
    CrossSigning = 2
}
export declare class FeatureSet {
    readonly flags: number;
    constructor(flags?: number);
    withFeature(flag: FeatureFlag): FeatureSet;
    withoutFeature(flag: FeatureFlag): FeatureSet;
    isFeatureEnabled(flag: FeatureFlag): boolean;
    get calls(): boolean;
    get crossSigning(): boolean;
    static load(settingsStorage: SettingsStorage): Promise<FeatureSet>;
    store(settingsStorage: SettingsStorage): Promise<void>;
}