/**
 * Extracts the file name from a URL string
 * @param url - The URL to extract the file name from
 * @returns The decoded file name from the URL, or 'image' if extraction fails
 */
export declare function extractName(url: string): string;
/**
 * Creates preview objects from File objects
 * @param files - Array of File objects, FileList, or null/undefined
 * @returns Array of file preview objects with type, file reference, name, and object URL
 */
export declare const createFilePreviews: (files: File[] | FileList | null | undefined) => {
    type: "file";
    file: File;
    name: string;
    url: string;
}[];
/**
 * Creates preview objects from URLs
 * @param urls - A single URL string, array of URL strings, or null/undefined
 * @returns Array of URL preview objects with type, URL, and extracted name
 */
export declare const createUrlPreviews: (urls: string | string[] | null | undefined) => {
    type: "url";
    url: string;
    name: string;
}[];
/**
 * Creates preview objects from various input types (Files, URLs, or null/undefined)
 * @param input - File array, FileList, URL string(s), or null/undefined
 * @returns Array of preview objects (file or URL previews)
 */
export declare const createPreviews: (input: File[] | FileList | string | string[] | null | undefined) => {
    type: "file";
    file: File;
    name: string;
    url: string;
}[] | {
    type: "url";
    url: string;
    name: string;
}[];
/**
 * Formats a filename to display in the UI by truncating long names
 * while preserving the extension.
 *
 * @param name - The full filename to format
 * @returns A shortened version of the filename
 */
export declare const formatFileName: (fileName: string) => string;
export declare const convertFileSize: (bytes: number | undefined) => string | undefined;