export declare function reportFeatureNotSupported(feature: string, error?: Error | string): void;
export declare const isIOS: boolean;
export declare const supportedBrowsers: string[];
export declare const minFirefoxVersion = 59;
export declare const minChromeVersion = 72;
export declare const minSafariVersion = 605;
export declare function isWebRTCSupported(): boolean;
export declare function getBrowser(): string;
export declare function getVersion(): number;
export declare function isBrowserSupported(): boolean;
export declare function isUnifiedPlanSupported(): boolean;
export declare function supportsInfoToString(): string;