/**
 * Scans for files matching a glob pattern within a list of specified locations.
 * This function is optimized for speed by using fast-glob.
 *
 * @param {function} callback - Optional callback to process the found files.
 * @returns {Promise<string[]>} A promise that resolves to an array of absolute file paths.
 */
export declare function scanForRootComponents(callback: any): Promise<string[]>;