export declare function toXSafariUrl(url: string): string | null;
export declare function isInAppBrowser(userAgent?: string): boolean;
export declare function getEscapeUrl(currentUrl?: string, userAgent?: string): string | null;
/**
 * Returns true when automatic (JS-initiated) escape redirects are dropped or
 * hang the host WebView, so a real user tap is required instead.
 *
 * Meta iOS: Facebook 555+ hangs on x-safari-* location.href (#2); IG/Threads
 * native schemes need a tap. Twitter/X iOS: every navigation stays in-app.
 */
export declare function needsUserGesture(userAgent?: string): boolean;
/**
 * Twitter/X iOS: do not navigate. `x-safari-*`, custom hosts, `_blank`,
 * HTTP 302s to `x-safari-*`, and Shortcuts `x-error` (dead on iOS 18.1+)
 * all reload or no-op inside X. Use copy + the host app chrome
 * (••• → Open in browser) or X Settings → Display → Use in-app browser.
 */
export declare function needsManualEscape(userAgent?: string): boolean;
export interface EiabUserAgentData {
    brands: {
        brand: string;
        version: string;
    }[];
    mobile: boolean | null;
    platform: string | null;
}
export interface EiabConnectionInfo {
    effectiveType: string | null;
    type: string | null;
    downlink: number | null;
    rtt: number | null;
    saveData: boolean | null;
}
export interface EiabDebugInfo {
    href: string;
    userAgent: string;
    referrer: string;
    title: string;
    isInAppBrowser: boolean;
    needsUserGesture: boolean;
    needsManualEscape: boolean;
    escapeUrl: string | null;
    webkitMessageHandlers: string[];
    isIOS: boolean;
    isAndroid: boolean;
    language: string;
    languages: string[];
    platform: string;
    vendor: string;
    cookieEnabled: boolean;
    maxTouchPoints: number;
    standalone: boolean;
    visibilityState: string;
    innerWidth: number;
    innerHeight: number;
    screenWidth: number;
    screenHeight: number;
    devicePixelRatio: number;
    telegramWebview: boolean;
    telegramWebApp: boolean;
    hasShare: boolean;
    hasClipboard: boolean;
    hasSafari: boolean;
    hasWebkit: boolean;
    historyLength: number;
    timeOrigin: number;
    collectedAt: string;
    userAgentData: EiabUserAgentData | null;
    connection: EiabConnectionInfo | null;
}
/**
 * Snapshot of the live browser environment plus eiab's detection result.
 * Intended for support / field debugging (copy-paste from a demo or overlay).
 * Requires `window` + `navigator`.
 */
export declare function getDebugInfo(): EiabDebugInfo;
export declare function attemptEscape(currentUrl?: string, userAgent?: string): void;
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