export declare function isGif(url: string): boolean;
export declare function isSvg(url: string): boolean;
export declare const earthMoonImage: {
    url: string;
    width: number;
    height: number;
};
export declare const frescoImage: {
    url: string;
    width: number;
    height: number;
};
export declare const portraitImage: {
    url: string;
    width: number;
    height: number;
};
export declare const portraitImageTitle = "The Arnolfini Portrait";
export declare const portraitImageCaption = "Jan van Eyck, *The Arnolfini Portrait*, 1434, oil on oak panel, 82.2 x 60 cm (National Gallery, London; photo: [Steven Zucker](https://flic.kr/p/2qEGNDi), CC BY-NC-SA 4.0)";
export declare const portraitImageLongDescription = "Jan van Eyck, The Arnolfini Portrait, 1434, oil on oak panel, 82.2 x 60 cm (National Gallery, London; photo: Steven Zucker, CC BY-NC-SA 4.0)";
export declare const scienceImage: {
    url: string;
    width: number;
    height: number;
};
export declare const scienceImageCaption = "*A diagram of prophase. During this stage of mitosis, chromosomes condense, the nuclear envelope breaks apart, and the mitotic spindle begins to form. Created with [Biorender.com](BioRender.com).*";
export declare const scienceImageAlt = "A diagram shows a single, circular cell.";
export declare const graphieImage: {
    url: string;
    width: number;
    height: number;
};
export declare const graphieImage2: {
    url: string;
    width: number;
    height: number;
};
export declare const graphieImageAlt = "An array of isosceles triangles. A triangle has height A. Two smaller triangle, one with height B and one with height C, have approximately the same combined height as A.";
export declare const graphieImage2Alt = "A picture graph shows the horizontal axis labeled Number of insects and the vertical axis labeled Types of insects. Each type of insect is listed along the vertical axis from bottom to top as follows: Beetle, Cricket, Ant, Mosquito, and Bee. The number of insects for each type of insect is represented by the number of pictures of ladybugs plotted on the graph. Beetle is represented by 5 pictures of ladybugs, Cricket is represented by 4 pictures of ladybugs, Ant is represented by 3 pictures of ladybugs, Mosquito is represented by 6 pictures of ladybugs, and Bee is represented by 3 pictures of ladybugs.";
export declare const gifImage: {
    url: string;
    width: number;
    height: number;
};
export declare const gifImageAlt = "A person on a skateboard moves back and forth across a concrete structure that forms the shape of a U.";
export declare const svgImage: {
    url: string;
    width: number;
    height: number;
};
export declare const extremelyLongDescription = "\nLorem ipsum dolor sit amet consectetur adipiscing elit. Quisque faucibus ex sapien vitae pellentesque sem placerat. In id cursus mi pretium tellus duis convallis. Tempus leo eu aenean sed diam urna tempor. Pulvinar vivamus fringilla lacus nec metus bibendum egestas. Iaculis massa nisl malesuada lacinia integer nunc posuere. Ut hendrerit semper vel class aptent taciti sociosqu. Ad litora torquent per conubia nostra inceptos himenaeos.\n\nLorem ipsum dolor sit amet consectetur adipiscing elit. Quisque faucibus ex sapien vitae pellentesque sem placerat. In id cursus mi pretium tellus duis convallis. Tempus leo eu aenean sed diam urna tempor. Pulvinar vivamus fringilla lacus nec metus bibendum egestas. Iaculis massa nisl malesuada lacinia integer nunc posuere. Ut hendrerit semper vel class aptent taciti sociosqu. Ad litora torquent per conubia nostra inceptos himenaeos.\n\nLorem ipsum dolor sit amet consectetur adipiscing elit. Quisque faucibus ex sapien vitae pellentesque sem placerat. In id cursus mi pretium tellus duis convallis. Tempus leo eu aenean sed diam urna tempor. Pulvinar vivamus fringilla lacus nec metus bibendum egestas. Iaculis massa nisl malesuada lacinia integer nunc posuere. Ut hendrerit semper vel class aptent taciti sociosqu. Ad litora torquent per conubia nostra inceptos himenaeos.\n\nLorem ipsum dolor sit amet consectetur adipiscing elit. Quisque faucibus ex sapien vitae pellentesque sem placerat. In id cursus mi pretium tellus duis convallis. Tempus leo eu aenean sed diam urna tempor. Pulvinar vivamus fringilla lacus nec metus bibendum egestas. Iaculis massa nisl malesuada lacinia integer nunc posuere. Ut hendrerit semper vel class aptent taciti sociosqu. Ad litora torquent per conubia nostra inceptos himenaeos.\n\nLorem ipsum dolor sit amet consectetur adipiscing elit. Quisque faucibus ex sapien vitae pellentesque sem placerat. In id cursus mi pretium tellus duis convallis. Tempus leo eu aenean sed diam urna tempor. Pulvinar vivamus fringilla lacus nec metus bibendum egestas. Iaculis massa nisl malesuada lacinia integer nunc posuere. Ut hendrerit semper vel class aptent taciti sociosqu. Ad litora torquent per conubia nostra inceptos himenaeos.\n";