export declare const getViewPortInformation: ({ pageHeight, pageWidth, frameElement, }: {
    pageWidth: number;
    pageHeight: number;
    frameElement: HTMLIFrameElement;
}) => {
    computedScale: number;
    computedWidthScale: number;
    viewportDimensions: {
        hasViewport: boolean;
        widthToken: string | undefined;
        heightToken: string | undefined;
        width: number;
        height: number;
    } | {
        hasViewport: boolean;
        widthToken: string | undefined;
        heightToken: string | undefined;
        width?: undefined;
        height?: undefined;
    } | {
        hasViewport: boolean;
        widthToken?: undefined;
        heightToken?: undefined;
        width?: undefined;
        height?: undefined;
    } | {
        width: number;
        height: number;
        hasViewport: boolean;
        widthToken?: undefined;
        heightToken?: undefined;
    };
} | undefined;