/**
 * Converts a file to a base64 string.
 * @param file
 * @returns a promise that resolves to a base64 string.
 */
export declare const fileToBase64: (file: File) => Promise<string>;
/**
 * Converts an array of base64 strings to an array of files.
 * @param base64Strings an array of base64 strings to be converted to files.
 * @returns an array of files.
 */
export declare const base64StringsToFiles: (base64Strings: string[]) => File[];
export declare const ACCEPTED_MIME_TYPES: Record<string, string>;
export declare const convertToMimeTypes: (fileExtensions: string[]) => string[];