export declare function isBrowserSafari(): boolean; export declare function getSafariVersion(): number; /** * Returns true for Chrome and also for Edge (Chromium) */ export declare function isBrowserChrome(): boolean; export declare function isBrowserFirefox(): boolean; export declare function isMacOsUserAgent(): boolean; export declare function isIOSUserAgent(): boolean; export declare function browserSupportsPreventScroll(): boolean; export declare function getTabIndex(el: HTMLElement | null): string | null; export declare function getMaxDivHeight(): number; export declare function getBodyWidth(): number; export declare function getBodyHeight(): number; export declare function getScrollbarWidth(): number | null; export declare function isInvisibleScrollbar(): boolean;