/**
 * Check if the url is a base64 url
 */
export declare function isBase64Url(url: string): boolean;
export declare function getFilenameAndExtensionFromUrl(url: string): {
    fileName: undefined;
    extension: undefined;
} | {
    fileName: string;
    extension: string;
};
/**
 * Check if the url points to a file of type image
 */
export declare function isImageType(url: string): boolean;
/**
 * Get the filename from a file url
 */
export declare function getFilenameFromUrl(url: string): string | undefined;
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